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243 Cards in this Set

  • Front
  • Back
Describe the structure of bone ***
Fibrous connective tissue, impregnated with mineral salts

- Connective tissue gives bone its toughness/elasticity
- Mineral salts give bone is hardness/rigidity
Bone shapes ***
- long
- short
- flat
- irregular
(- sesamoid)
What is periosteum? ***
tough fibrous outer membranous covering of a bone
Characteristics of periosteum ***
- Highly vascular (blood supply to bone)

- Inner lining of periosteum contains osteoblasts (cells responsible for growth and repair of bone)
What is compact bone? ***
a.k.a. cortical bone

outer bone layer laid down in concentric circles
What is spongy bone? ***
a.k.a. cancellous bone

inner bone layer; porous appearance
Characteristics of spongy bone ***
- thin calcified plates (trabeculae) laid down in response to stress
(this is why exercise is important to bones!)

- primarily at ends of long bones and in flat bones

- contains spaces filled with red marrow (for RBC formation)
Components of (long) bone ***
- medullary cavity
- diaphysis
- epiphysis
- metaphysis
What is the medullary cavity? ***
- central cavity of long bone

- filled with yellow marrow (fat) in adults (this is what can cause embolism with a fracture)
What is the diaphysis? ***
the shaft of the long bone
What is the epiphysis? ***
the expanded ends of the long bone
What is the metaphysis? ***
the epiphyseal growth plate

- a disc of cartilage between diaphysis and epiphysis in children

- new bone forms here

- when growth stops, cartilage disappears and ossification occurs
How may bones become infected? ***
Infectious agents can enter the bone through
- open fractures
- from bloodstream
- from adjacent infected tissue
What is osteomyelitis? ***
inflammation of bone (medullary cavity and spongy bone)
- local and systemic infection
- most common in children and adolescents
- long bones affected (femur, humerus, tibia)
How does osteomyelitis form? ***
- infectious pyogenic organism (staph) from bloodstream/open wound enters bones
- abscess forms
- pus fills cavity
- local inflammatory response (heat swelling, pain)
- vessels in area are compressed due to edema
- bone tissue ischemia, then necrosis
- separation of necrotic bone from healthy bone (sequestrum)
- blood clots from infectious tissue travel to other bone sites and form new bone abscesses
What are the systemic effects of and treatment for osteomyelitis? ***
- systemic effects: fever/chills, elevated WBC level

- tx: massive (IV) antibiotics, NWB, surgery to necrotic bone
Characteristics of tuberculosis of bone ***
- while TB is primarily a lung disease, it can spread to other structures
- infectious tubercules from lungs travel via bloodstream to bone
- iInfectious clumps form on bone, cavities develop in bone, bone tissue is destroyed

- commonly affects: ends of long bones, cartilage in joints
Sequelae of tuberculosis of bone ***
- arthritis of joints
- destruction of growth plates
- Pott’s disease (vertebral column of children); results in spinal deformity, possible nerve impingements
Treatment for tuberculosis of bone ***
- TB antibiotics
- surgery to correct deformities
How does Vitamin D deficiency affect bones? ***
- Vitamin D is necessary for absorption of calcium and phosphorus into system

- lack of Vitamin D results in soft bones that bend easily:
---- Rickets (children)
---- Osteomalacia (adults)
---- genu varum (bowed legs)
---- genu valgus (knock knees)
---- also spinal curvature, delayed teething, and muscle flabbiness
How do deficiencies in blood levels of calcium and phosphorus affect bones? ***
result in soft, deformed bone

Vitamin D is needed for these minerals to be absorbed into the system
What is the treatment for Vitamin D (and calcium/phosphorous) deficiency? ***
- sunshine
- supplements
- fortified milk
- cod liver oil
What is osteitis fibrous cystica? ***
- caused by hyperactivity of parathyroid

- excessive production of parathyroid hormones pulls calcium from bones (increases activity of osteoclasts)

- cysts and nodules form in bones, which decalcify and become porous

- results in bone deformities, spontaneous fractures, calcium in vessels, kidney stones, depressed nervous system
Treatment for osteitis fibrous cystica ***
- drug therapy
- removal of parathyroid tumor
- surgery to correct deformity
What is Paget's disease? ***
- softening of the bone
- causes remodeling and overproduction of soft “immature” bones
- etiology unknown; possibly genetic

- results in enlarged bones (primarily skull, pelvis, vertebrae)
- also frequent fractures and bony deformities
Treatment for Paget's disease? ***
- if mild, none
- if severe: NSAIDS, diet, drugs to prevent bone loss
What is osteoporosis? ***
- increased porosity of bone
- leads to reduction in bone mass
- skeletal system becomes fragile (primarily vertebral bones, pelvis, femur, radius)

- traebecular/spongy bone affected mostly, but compact bone too
- occurs most frequently in white females > 50 yrs.
Causes of osteoporosis ***
- possibly heredity
- females with small bone mass
- aging process with decreased estrogen post-menopause

- immobilization/disuse atrophy
- calcium-poor diet (particularly in teen years when bone is developing)
- lack of exercise
Complications of osteoporosis ***
- compression fractures of vertebral bodies (causing pain, spinal nerve pressure)
- fractures of weight bearing bones (hips, pelvis) radius (wrist)
- curvature of spine (kyphosis)
- decreased height
Treatment for osteoporosis ***
- exercise
- estrogen therapy
- calcium-rich diet
- surgery for fractures
What are the two most common deformities of the spinal column? ***
- scoliosis
- kyphosis
Name four types of bone neoplasms ***
- osteoma
- giant cell tumors
- osteogenic sarcoma
- secondary tumors
What is osteoma? ***
- benign growth
- usually develops at end of long bone
- can affect joints
What are giant cell tumors? ***
- benign or malignant
- removed surgically
What is osteogenic sarcoma? ***
- primarily malignant
- most common in children (long bones, knee)
- can develop from Paget's disease
- treated with chemotherapy or amputation
What are secondary tumors? ***
- cancer that has metastasized (generally from lung or breast)
- very painful in bone
- easily fractures ribs, sternum, skull (highly vascular bones)
What is a fracture and what are some causes? ***
- disruption of the continuity of bone

caused by
- trauma excessive stress on bone
- fatigue - repeated stress on bone (stress fracture)
- pathology - disease process (TB, CA, osteoporosis)
Name ten types of fractures ***
- open (compound)
- closed (simple)

- avulsion
- comminuted
- compression
- depressed
- greenstick
- impacted
- multiple
- spiral
Open fracture ***
a.k.a. compound fracture

- fractured bone pierces skin

can result in
- infection (osteomyelitis)
- contamination
- soft tissue damage
Closed fracture ***
a.k.a. simple fracture

- no communication with external
- skin not pierced
Impacted fracture ***
- one fractured end is forced into the other end

- commonly due to falls
- also common in hip fractures
Greenstick fracture ***
bone fractures on one side, but bends on the other

common in children because their bones have more organic matrix and are more flexible
Comminuted fracture ***
fracture with splintered, fragmented, bony pieces

common in those with brittle bones, such as osteogenesis imperfecta
Multiple fracture ***
more than one segment of bone fractures
Avulsion fracture ***
occurs when a fracture of bone tears away from the main bone due to external force or trauma
Compression fracture
bone is crushed

common in patients with osteoporosis
Depressed fracture
broken bone is pressed inward

common in skull fractures
Spiral fracture
jagged break due to twisting force on bone

common fracture in sports injuries
What are the five stages of fracture healing? ***
- hematoma - blood seeps out and surrounds fx’s surfaces

- granulation - hematoma invaded by tiny capillaries; tissue becomes soft and rubbery

- callus - osteoblasts (repair cells for bone from periosteum) enter site of repair and lay irregular trabeculae of bone; new blood vessels grow into tissue; osteoclasts reabsorb necrotic bone

- consolidation - osteoblasts organized, callus transformed into mature bone

- remodeling - union is complete; newly formed bone forms a “collar” that is stronger, thicker, and denser than the original bone
What are four types of treatment for fractures? ***
- closed reduction
- open reduction internal fixation
- external fixation
- mechanical traction
What is the primary goal of fracture treatment? ***
reduction of fracture

realignment of bone
What is closed reduction of a fracture? ***
- manual manipulation
- realignment of bone from outside
- no surgery
- cast to immobilize while healing
What is open reduction and internal fixation (ORIF) of a fracture? ***
surgery performed
- fracture site and wound cleaned out, and
- fracture fixed with pins, plates, screws, etc., or
- prosthesis (TKA, etc.)
What is external fixation of a fracture? ***
- percutaneous pins/wires connected to a rigid external frame

- allows 3-plane correction of a deformity
What is mechanical traction of a fracture? ***
- fracture is immobilized in a traction unit
- especially with long bones of the lower extremities
- until healed or ORIF

(think of the old cartoons with the casted leg elevated in a sling)
What are some possible complications of a fracture? ***
- TBI (skull fracture)
- SCI (vertebral fracture)

- damage to surrounding organs (muscles, vessels, organs)
- embolism (fat, blood clot, air) can become pulmonary embolism
- infection, especially with compound fracture or ORIF

- delayed union, or non-union, due to poor vascular supply
- bone shortening
- issues due to immobilization (pneumonia, decubitus ulcers)

- avascular necrosis - death of bone tissue due to lack of blood supply
---- can lead to tiny breaks in the bone and eventual bone collapse
---- most often affects head of femur, causing hip pain
---- can affect other bones as well
What is a joint? ***
the articulation of two or more bones
Structure of a joint ***
- articulation of two or more bones

- articulating surfaces covered with hyaline cartilage

- often cartilaginous discs/menisci present between bones to
----- serve as shock absorbers/distributors
----- accommodate movement (vertebrae, knee)
What is a sprain? ***
- tearing or stretching of ligaments surrounding joint (Grade I-III)

- can rupture blood vessels of surrounding tissue; joint intact

- once torn, it’s torn because the tissue is avascular

- also easier to re-sprain b/c it is stretched and remains stretched
Signs and symptoms of a sprain ***
- inflammation
- edema
- ecchymosis (blood from somewhere superior)
- pain
- LOM
What is dislocation/subluxation of a joint? ***
- bone displaced from joint (shoulder, finger, patella)
- secondary to excessive force or poorly formed joint
- soft tissue damage

- edema
- pain
- deformity
- LOM

- may be congenital: displaced bone in joint due to improperly formed joint in newborn; usually hip
What is arthritis? ***
inflammation of a joint or joints resulting in pain, swelling, and stiffness
What is rheumatoid arthritis? ***
- progressive, chronic, systemic inflammatory disease of the joints

- inflammation of synovial membrane with membrane thickening (pannus)

- spreads to joint space and results in erosion of articulating surfaces due to inflammatory phase (inflammation continuous)

- scar tissue forms
- joint ankyloses (fuses); can be severely crippling
- results in no joint motion
- subcutaneous nodules in areas of increased mechanical pressure often occur (usually in MCPs)
- affects multiple bilateral joints
- periods of exacerbation/remission
Cause of and treatment for rheumatoid arthritis ***
cause:
- possible tissue hypersensitivity secondary to autoimmune reactions
- possible genetic factor

treatment:
- no cure
- treat symptoms with anti-inflammatories, prednisone (steroids)
- exercise (do not overstretch pt)
- possible surgery
What is juvenile RA? ***
- RA with onset prior to age 16
- can be severe and crippling by young adulthood
What is the most common form of arthritis? ***
osteoarthritis
What is osteoarthritis? ***
- deterioration of articulating cartilage resulting in exposure of underlying bone

- causes new bone formation (hypertrophy)
- osteophytes (spurs) develop

- often affects only one joint; usually a weight bearing joint (hip, knee, vertebra)

- affects sexes equally
Cause of and treatment for osteoarthritis ***
- cause unknown
- associated with injured/overworked joints
- aging worsens with increased weight

- no cure
- treat symptoms with analgesics, NSAIDS, corticosteroid injections
- decrease WBing on joint, lose weight,
- possible surgery
What is the structure of skeletal muscle? ***
- consists of bundles of muscle cells (fibers)

- muscle fibers consist of myofibrils which contain actin and myosin

- myofibrils comprise contractile units called sarcomeres

- the number of muscle fibers present in a muscle is fixed
- any increase in size of muscle is brought about by hypertrophy of each individual fiber
(increased mitochondria, increased myofibrils)
What is a motor unit, and how does it function? ***
- motor unit = all the muscle fibers innervated by one motor neuron and its axon

- stimulation of motor unit occurs at neuromuscular junction

- requires release of Ach from presnynaptic junction

- excess Ach cleaned up by (acetyl)cholinesterase enzyme
What is tendinitis/tendonitis and how is it treated? ***
inflammation of tendon due to
- trauma
- repeated microtrauma (sports)
- postural malalignment

- can result in scarring, calcium deposits laid down

treatment:
- immobilization
- NSAIDs
- steroidal injections
- PT
What is a strain? ***
- damage to muscle tissue

mild; without loss of continuity of fibers
severe:
- partial or complete tear of muscle
- loss of continuity of muscle fibers
What is a cramp? ***
painful, involuntary muscle contraction due to
- electrolyte imbalance or
- muscle fatigue

decreased blood flow leads to ischemia, which sets off reflex contraction

muscle soreness due to:
1) microtears of muscle or CT
2) edema due to accumulation of metabolic wastes
(need acetylcholinesterase to clear wastes out; this is
why DOMS is helped by doing a couple of pushups)
What is compartmental syndrome? ***
- condition which develops when there is increased pressure in an enclosed and limited anatomical space resulting in compression of muscles, nerves, vessels

- extremities (esp LE) are susceptible to compartmental syndrome because muscles, nerves, blood vessels, and bone are surrounded by non-expanding fascial sheaths

- any condition that increases the contents of the compartment (usually inflammation, edema) puts patient at risk for neuromuscular damage due to ischemia

- check distal muscles, pulse, sudden onset of foot drop

- can cause permanent damage if not treated
Causes of and treatment for compartmental syndrome? ***
causes:
- burns
- intensive use of muscles
- bites
- capillary filtration

treatement - fasciotomy
What is Muscular Dystrophy? ***
- a group of uncommon inherited conditions in which there is progressive degeneration and destruction of muscle fibers

- cell defect which interferes with protein metabolism necessary for providing energy for muscle contraction

- muscles necrose and are replaced by connective tissue and fat

- different types of dystrophies (9 in all), all have muscle wasting in common
What is Duchenne's Muscular Dystrophy? ***
- sex-linked recessive gene carried by mother
- affects males exclusively

- diagnosed by 2-3 years (Gower’s sign)
- affects proximal muscles (shoulder/pelvic girdles)

- wheelchair-bound by 8-10 years after diagnosis
- death usually by 20 years due to cardiac/respiratory complications
What is myasthenia gravis? ***
- disorder of the neuromuscular junction; but nerve and muscle are intact

- autoimmune disease
- antibodies produced which cover many of the Ach receptors at motor end plate on post-synaptic membrane
- results in decreased stimulation of muscle tissue; weakness

- females > males 20-40 years
- can be life threatening if respiratory muscle involvement
Treatment for myasthenia gravis ***
treatment:

- cholinesterase-inhibiting drugs (Ach stays in cleft longer an has more a chance to bind onto available receptor site)

- plasmaphereis – blood removed, plasma which contains antibodies is skimmed off, blood elements returned
What is rhabdomyosarcoma and how is it treated? ***
- rare, malignant cancer of skeletal muscle

- highly malignant, metastasizes early

- poor prognosis

- treatment: aggressive chemotherapy, surgery to remove cancerous muscle tissue
What is myositis (heterotropic) ossificans? ***
a.k.a. heterotropic ossification

- an extra-osseous, non neoplastic growth of new bone

- occurs most commonly in the second and third decade in the arms and thighs of patients who have experienced some sort of trauma

- quadriceps and brachialis are the most affected
What causes myositits (heterotropic) ossificans? ***
- not applying R.I.C.E.M. (rest, ice, compression, elevation, and motion) immediately after injury.

- having intensive physical therapy or massage too soon after injury

- returning too soon to training after injury
What are the signs and symptoms of myositis ossificans? ***
- restricted range of motion
- pain in the muscle with movement
- (palpable) hard lump in the muscle
- x-ray showing bone growth
Treatment of myositis ossificans ***
- rest from activity
- usually will resolve itself in time
- may require surgical excision of calcified tissue
- also prone to reoccur
What is Osgood Schlatters disease? ***
- common cause of knee pain in children and young athletes

- tibial tuberosity becomes inflamed, painful and swollen
Cause of Osgood Schlatters disease ***
- patellar tendon inserts at the tibial tuberosity and through overuse can tug away at the bone causing inflammation

- most often in children involved with running and jumping activities

- with repeated trauma, new bone grows back during the healing
- causes a bony lump which is often felt at the tibial tuberosity.
Signs and symptoms of and treatment for Osgood Schlatter's disease ***
- tenderness and pain on the tibial tuberosity during and after exercise.

- pain when contracting the quadriceps against resistance or when contracting the muscles with the leg straight

treatment
- rest from activity
- ice after sports activity
- knee brace or support
Structure of skin ***
Skin consists of two primary layers:
- epidermis (outer layer) and
- dermis (deeper layer) with an
- underlying subcutaneous layer of fat
What is the epidermis? ***
- multi-layered
- consists of squamous (layered) epithelium
- contains free nerve endings
- no blood vessels

- keratinocytes (water-proofing cells)
- melanocytes (skin pigments)
What is the dermis? ***
- underlies epidermis

- has nerve endings
- has special sensory receptors

- rich vascular bed

- hair follicles (epithelial beds)
- sweat glands
- sebaceous glands
What is the subcutaneous fat layer? ***
- underlies dermis
- connects dermis to underlying fascia
- provides food reserve and insulation
- sweat glands
- sebaceous glands
Name 10 types of skin lesion ***
- bulla
- fissure
- macule
- nodule
- papule
- pustule
- scales
- ulcer
- vesicle
- wheal
What is a macule? ***
a discolored spot of skin that is neither elevated above nor depressed below the surrounding skin surface
What is a papule? ***
a solid, red, elevated skin lesion
What is a nodule? ***
a solid, hardened, elevated skin lesion
What is a vesicle? ***
a small (generally less than 0.5 cm) fluid-filled blister
What is a bulla? ***
a large (generally greater than 0.5 cm) fluid-filled blister
What is a pustule? ***
a circumscribed, raised skin lesion filled with pus
What is a wheal? ***
a generally round, transient elevation of skin, white in center, with pale red edges

often accompanied by itching
What are scales? ***
thin, dry dead tissue shed from upper layers of skin
What is a fissure? ***
a crack like a sore or ulcer
What is an ulcer?
an erosion or eating away of tissue
What are infectious skin diseases? ***
those that result from
- bacteria
- virus
- fungus
- parasite
What is impetigo and how is it treated? ***
- bacterial infection
- most often seen in children
- caused by strep or staph
- oozing vesicles that crust over

- treated with antibiotics
What is an abscess and how is it treated? ***
- a.k.a. carbuncle
- cluster of boils (furuncles)
- caused by staph infection

- involve imbedded hair follicles and subcutaneous tissue

- treated with antibiotics
- occasionally irrigation and drainage (I&D)
What is herpes simplex I and how is it treated? ***
- painful vesicles which form scabs
- cycles of dormancy/activity
- recur with stress, sunburn, reduced immunity

- treated with topical analgesics
What is herpes zoster (shingles)? ***
- reactivation of chicken pox
- eruptions of painful water blisters along nerves affected by virus
- usually on trunk or face
- unilateral
What are warts? Name three types. ***
- virus causes proliferation of keratinocytes and hypertrophy of epidermis

- verucca vulgaris (elevated, seen in children)
- plantar (grow inward on soles of feet, painful)
- genital (can be sexually transmitted)
Name two fungal diseases and their treatment ***
- ringworm - red, ring-shaped pruritis (actually a fungus, not a worm)
- athlete's foot - fissures, pruritis

- treated with antifungal medications and good hygiene
Name two parasitic infections and their treatment ***
- pediculosis - skin infestation with lice
- scabies - skin infestation with mites

- treated with medication and good hygiene
Name two hypersensitivity disorders and their symptoms ***
- urticaria (hives) - allergic reaction, wheals, pruritus

- eczema (dermatitis) - delayed allergic response to substance which has contacted skin (e.g., poison ivy, dyes, perfumes, soaps)
erythema, vesicles, bulla, pruritus
Name four types of neoplastic skin diseases ***
- nevus
- basal cell carcinoma
- squamous cell carcinoma
- malignant melanoma
What is a nevus? ***
- benign neoplastic growth of melanocytes
- can become malignant
What is a basal cell carcinoma and how is it treated? ***
- slow-growing skin cancer
- caused by overexposure to the sun
- non-metastasizing

- treated with radiation and surgery
What is squamous cell carcinoma and how is it treated? ***
- fast-growing skin cancer
- caused by overexposure to the sun
- metastasizing

- treated with radiation and surgery
What are malignant melanomas? ***
- arise from melanocytes
- highly malignant
- can develop from nevi
Name six metabolic skin disorders? ***
- acne - caused by hyperactive sebaceous glands

- chronic dandruff - caused by hyperactive sebaceous glands

- sebaceous cysts - from blocked sebaceous glands
---- large nodules form; contain bacteria and pus; tend to reoccur

- pilonidal cysts - gluteal crease near rectum
---- treated with I&D, removal of glands

- seborrheic keratosis (senile warts) - raised horny lesions
---- excessive production of keratinocytes; occur with aging

- psoriasis - chronic disease, possibly with genetic factor
---- patches of red skin lesions covered with silvery scales
---- non-infectious
---- exacerbations/remissions
What are decubitus ulcers? ***
- localized area of ischemic necrosis and ulceration

- develops primarily over bony prominences that have been subjected to
---- prolonged pressure
---- shearing forces
---- friction
---- moisture
Describe a first stage decubitus ulcer ***
- epidermis is intact

- skin is red, does not resolve after 20-30 minutes

- usually resolves with pressure relief
Describe a second stage decubitus ulcer ***
- superficial breakdown in epidermis

- redness, edema, induration (dented in), occasional blistering

- usually resolves with pressure relief
Describe a third stage decubitus ulcer ***
- necrosis into dermis and subcutaneous fat layer

- eschar (leathery, dark, dead skin) present

- drainage from wound, infection

- PT wound care intervention, debridement (must remove old/dead skin before new skin can proliferate)
Describe a fourth stage decubitus ulcer ***
- ulceration beyond fat layer into muscle and bone

- eschar (leathery, dark, dead skin), drainage, and infection

- if bone is exposed - osteomyelitis, bone destruction

- often requires surgical debridement, skin/muscle flaps, osteotomy
Are decubitus ulcers typically painful? ***
no, especially early on

this is why they go undiagnosed

you can test skin blanching to detect
What types of patients are most susceptible to decubitus ulcer? ***
- debilitated (cancer, pneumonia)
- malnourished (cancer)
- immobilizaed (fractures, coma, paralysis)
- lack of sensation/mentation (SCI, CVA, TBI)
- edematous body parts (esp. due to burns)
Where are the most common sites of decubitus ulcers? ***
- occiput
- scapula
- spinous processes (usually thoracic)
- elbow
- sacrum
- ischial tuberosity
- greater trochanter (side-lying)
- iliac crest
- malleoli (side-lying)
- heels
What are some means of preventing decubitus ulcers? ***
- position, position, position!!
- care in transfer (watch shearing with sheet)
- decrease weight bearing
- types of mattresses can make a difference
- clean sheets
- flat sheets (get wrinkles out before putting pt in)
- dry sheets

Air splints
Sheepskin (??)
What types of agents can cause burns? ***
- thermal
- chemical
- electrical
- radiation (x-ray, UV)
Describe a thermal burn ***
- temperature over 111 degrees
- liquids (water, oil, molten metal)
- flame (fire, flash burns)
- hot objects
Describe a chemical burn ***
- can continue for long periods of time

- requires immediate washing with copious amounts of water
What is cellulitis? ***
- spreading skin infection caused by streptococci
- follows other skin damage
- red, swollen skin surrounding lesion
- streaks, spreads rapidly
- fever, chills, pain
- may be life-threatening if it spreads to the lymph system or bloodstream
What is the clinical importance of burn depth determination? ***
- wound care
- excision and grafting
- outcome
What is a superficial burn (first-degree)? ***
- outer epidermal layer, no dermal involvement

- painful (nerve endings)
(e.g., sunburn - no blisters, dry and red, will peel)

- healing 2-5 days, usually not treated by healthcare team
What is a partial-thickness (second-degree) burn? ***
- burn into the dermal layer
- epidermis completely destroyed
- painful
since the dermal layer is not completely destroyed, there are still sweat glands and hair follicles
- epithelial beds generate new skin growth
What is a superficial partial thickness burn? ***
- burn into dermis
- blisters
- extremely painful
- healing in 1-3 weeks
What is a deep partial thickness burn? ***
- severe damage to entire dermis
- bleeding
- moist, weeping
- edema
- blanches, mottles
- painful
- healing in 3-5 weeks
- extensive burns usually seen by healthcare team for wound care (change dressing, prevent infection)
Upon what does the healing of a partial-thickness burn depend? ***
- prevention of infection
- scarring
What is a full-thickness (third-degree) burn? ***
- all of epidermis, dermis destroyed
- damage to underlying subcutaneous fat layer/muscle
- thick eschar, dry and leathery, brown, black, or red
- tissue does not blanch (needs to be excised)

- anesthetized because nerve endings destroyed
- epithelial beds destroyed (no skin buds)
- tissue regeneration only from wound edges
- usually requires skin grafts
- healing time usually takes months, scarring
Describe electrical burns ***
- complete destruction of all tissues from epithelium to bone

- entrance wound (charred and depressed) and
- exit wound (explosive edges)

- may require amputation of extremity
- often a lot of internal soft tissue/organ damage
- difficult to assess
What is the Rule of Nines? ***
- size of wound expressed as percentage of total body surface area (TBSA) burned

- Rule of Nines is rapid calculation for determination of %TBSA burned

- divides body into multiples of 9 (head = 9%, leg = 18%)

- calculations differ from infant-child body to adult body
What is the Lund-Browder method for assessing burns? ***
- more accurate way to assess TBSA burned

- measures the extent of area burned based on percentage of total surface area affected

- uses a table that divides the body based on areas as well as age
When area of body burned is greater than 70%, ... ***
more than half of victims die
What is mental illness? ***
a group of psychiatric disorders characterized by severe disturbances in
- thought
- mood
- behavior
What is psychiatry? ****
medical specialty that diagnoses and prescribes medical treatment for mental illness
(can write a prescription)
What is psychology? ***
studies normal and abnormal behavior and applies counseling to treat mental illness
(no prescriptions)
What is the incidence of mental illness in the US? ***
1 in 4
What are some warning signs of mental illness? ***
- aggression
- changes in eating or sleeping habits
- confusion
- decline in school or work performance
- depression
- euphoria alternating with depression
- excessive fear
- frequent complaints of physical illnesses (somaticizing)
- hearing voices
- substance abuse
- thoughts of suicide
- withdrawal from family and friends
How many psychiatric diagnoses exist for adults and children? ***
over 200
What is the DSM-IV? ***
Diagnostic and Statistical Manual of Mental Disorders (IV)
How is the DSM-IV used? ***
- internationally to classify, assess, and guide treatment for mental illness

- disorders are categorized according to groups of symptoms or diagnostic criteria

- disorders are assigned 5 axes that address adaptive issues and contribute to primary diagnoses

- all disorders require evidence of impairment in academic achievement, occupational performance, or social relationships
How are the five axes of psychiatric disorders used? ***
they guide documentation and are used like a SOAP note

- Axis 1: primary diagnosis (clinical disorders and other conditions that may be a focus of clinical attention)

- Axis 2: primary diagnosis (personality disorders, mental retardation, learning disabilities)—hardest to treat

- Axis 3: general medical conditions (may not be mental, e.g., TKA, these will be what we see)

- Axis 4: psychological and environmental problems

- Axis 5: global assessment of functioning
How are psychiatric records protected? ***
even more stringently than medical records
What are some potential biological causes of mental illness? ***
- genes/heredity
- brain size
- altered neural connections from trauma
- degenerative processes
- neurotransmitter malfunction
How may neurotransmitters cause mental illness? ***
- inadequate regulation
- excess neurotransmitter
- burned out receptor sites due to substance abuse, prolonged depression/sadness
What is the function of dopamine? ***
regulates
- mood
- behavior
- thought processes
- heart rate
- blood pressure
- appetite/satiety
What mental illnesses are associated with inadequate regulation of dopamine? ***
- schizophrenia
- depression
- ADHD
- bipolar disorder
- eating disorders
- autism
- Tourette’s syndrome
What mental illnesses are associated with inadequate regulation of norepinephrine? ***
- depression
- anxiety disorders
- ADHD
- bipolar disorder
What is the function of norepinephrine? ***
regulates
- mood
- anxiety
- vigilance
- arousal
- heart rate
- blood pressure
What is the function of serotonin? ***
regulates
- perception of pain
- feeding
- sleep-wake cycle
- motor activity
- sexual behavior
- body temperature
What mental illnesses are associated with inadequate regulation of serotonin? ***
- depression
- aggression
- suicidality
- bipolar disorder
- eating disorders
What is the function of acetylcholine? ***
regulates
- learning
- memory
- muscle tone
What mental illnesses are associated with inadequate regulation of acetylcholine? ***
- Alzheimer’s disease
- Parkinson’s disease
- Huntington’s Chorea
- Tourette’s syndrome
What is the function of Gamma aminobutyric acid (GABA)? ***
interacts with a wide range of neurotransmitters to enhance inhibition
What mental illnesses are associated with inadequate regulation of Gamma aminobutyric acid (GABA)? ***
- anxiety disorders
- alcoholism
- Tourette’s syndrome
- sleep disorders
List two disruptive behavior disorders and their common characterization. ***
- conduct disorder

- oppositional defiant disorder

they are characterized by willful disobedience
Attributes of disruptive behavior disorders ***
- affects males > females
- affects children most often

- defiance of authority, fighting, school failure, destruction of property are common behaviors

- often from broken or violent home situations
- associated with harsh physical punishment
- often parents may have antisocial disorder or be substance abusers

- often (nearly always) overlaps with other psychiatric disorders
What is attention deficit hyperactivity disorder (ADHD) and what is its typical treatment? ***
neurobiological condition

prominent symptoms of
- inattention and/or
- hyperactivity/impulsivity

affects boys > girls; often persists into adulthood

treatment - stimulants and behavioral therapy
What are the three subtypes of ADHD? ***
- predominantly inattentive - spacey, socially withdrawn, fewer conduct and behavior problems

- predominately hyperactive - impulsive, runs around and fidgets, difficulty engaging in quiet activities, interrupts others, blurts out answers

- combined - characteristics of both
What is mental retardation? ***
- low intelligence
- deficits in social and language skills

- results from
---- psychosocial factors
---- biological factors or
---- combination of the two

- often unknown etiology
What is autistic disorder and what causes it? ***
characterized by deficits in
- reciprocal language/language development
- social interaction

- repetitive stereotyped behaviors (posturing, hand flapping, self-injurious behavior, abnormal eating or drinking patterns)
- limited eye contact
- speech may be echo-like, and illogical

- may not appear until after 3 years of age

causes may include
- illness that affects CNS: rubella, seizures, encephalitis, toxins.
What are tic disorders and how are they treated? ***
- tic: sudden, rapid, involuntary movement or vocalization that may be temporarily suppressed by subconscious effort

- exacerbated by stress, anxiety, boredom, fatigue
- typically decreases when subject is concentrating on enjoyable task

- affects boys > girls

- transient tics require no medical treatment
- complicated tic disorders require titrated medication therapy
What is dementia? List three types and their characteristics. ***
dementia - degenerative syndrome with deficits in memory, language in mood

- Alzheimer's disease - most common form; develops gradually after age 60

- Vascular dementia - more abrupt onset, caused by physical insults from HTN, DM, CVA as well as poor nutrition and possibly chronic alcoholism

- Parkinson's disease - degenerative neurological movement disorder; dementia in late stages
Progression of Alzheimer's disease ***
early signs - short-term memory loss

advanced disease - psychosis, aggression, profound personality changes

- severe disease - judgment lost, personal care neglected, physical illnesses may lead to death

- degeneration of neurons and plaque formation on and around neurons

- acetycholine is neurotransmitter most affected
Two most common risk factors for Alzheimer's and current treatment methods ***
risk factors
- advanced age
- family history

treatment
- medication to slow progression and treat comorbid conditions (e.g., depression, antianxiety medications)
Characteristics of substance abuse disorders and treatment for them ***
- substance abuse is a conscious choice
- includes alcohol and drug addiction

- social problem with extensive emotional and economic consequences

warning signs of disorders include
- continued use in spite of medical, social, economic, and legal consequences

core symptoms of dependency include:
- compulsive use,
- physical and psychological cravings,
- tolerance, and
- withdrawal (may be unable to function without substance)

treatment: rehab centers, 12 step programs, counseling
What is schizophrenia? ***
a complex, characterized by
- loss of contact with reality,
- severe disturbances in social functioning,
- bizarre thoughts

- changes in affect or emotional state
- patient may have no regard for ADLs
- onset usually late teenage years, or adulthood
How does schizophrenia present? ***
Presentation:
- withdraws from society, increasing concern for abstract and eccentric ideas
- may be only episodic,
- depression, anxiety, suspiciousness, difficulty concentrating, restlessness early signs
- hallucinations, delusions:
---- persecutory (watched, followed, plotted against)
---- grandiose (special powers, influence or wealth)
---- somatic (belief that something is rotting inside their body)
Affectation of schizophrenia ***
Affects
- “feeling tone”, outward expression of emotion
- schizophrenic affect may be unstable and shift rapidly
- may be flattened, devoid of emotional expression
- motor disturbances:
---- may be catatonic, rigid, disorganized or
---- range from “zombie-like” to wild and aggressive
conduct may be blunted having no relationship to social signals
Cause of and treatment for schizophrenia? ***
causes:
- neurobiological,
- family influences,
- social and environmental attributes

treatment:
- most serious known psychiatic illness,
- suicide rate 10%,
- lower life expectancy
- medications influencing dopamine
What are mood disorders? Name two. ***
- characterized by marked periods of sadness and euphoria

- mood disorders are debilitating and result in vocational failure, social withdrawal, and dysfunctional relationships

two mood disorders
- major depression
- bipolar disorder
Characteristics of major depression ***
- heredity is predisposing factor
- occurs at any age
- women two times more often than men
- common in the elderly

- feelings of hopelessness, sadness, and despair

major depressive disorder consists of at least one episode of serious mood depression followed by a number of changes in behavior
- loss of interest or pleasure,
- feelings of guilt, worthlessness, anxiety and shame
- unexplained weight loss or gain,
- disturbed sleep,
- poor eye contact,
- monosyllabic speech
Subcategories of major depression ***
Seasonal Affective Disorder: due to decreased sunlight exposure

Postpartum Depression: usually 2 to 6 weeks postpartum, persistent care of newborn, sleep disturbances, social stresses and hormonal changes

Premenstrual dysmorphic disorder: Chronic depression or dysthymia if symptoms persist more than 2 years; cyclic depressive symptoms may occur for some women.
Treatment for major depression ***
- antidepressants
- counseling

common comorbid diseases
- thyroid disease
- chronic heart disease
- cancer
- HIV infection
should be treated as well
Characteristics and treatment of bipolar disorder ***
a.k.a. manic-depressive illness:

- unusual shifts in mood from depression to mania
- affects more than 2 million American adults
- typically develops in late adolescence or early adulthood

treatment: mood stabilizers (Lithium), individual and family counseling
Characteristics of anxiety disorders ***
- include a number of disorders with primary feature being abnormal or inappropriate anxiety that interferes with ADLs

- anxiety is normal in response to danger. “fight or flight”
- at onset of stressful event HR, respiratory rate, blood pressure, and muscle tension increase in order for us to respond quickly

- symptoms of anxiety are problematic if they occur without known cause or disproportionately to stimulus.
Name five types of anxiety disorders ***
- panic disorder
- generalized anxiety disorder
- phobias
- obsessive compulsive disorder
- post-traumatic stress disorder
Characteristics of panic disorder ***
- panic attack is sudden onset of fear and terror

accompanied by
- physical signs in vital organs,
- SOB,
- palpitations,
- chest pains

- symptoms peak within 10 mins.and usually subside within 30-60 mins.
- worry about having a panic attack can lead to anxiety disorder
- may seek ER care
Characteristics of generalized anxiety disorder ***
- severe persistent worries, out of proportion to circumstances
- common worries related to work, money, health, safety are difficult to control
- restlessness, fatigue, muscle tension, impaired concentration, and disturbed sleep
- may be misdiagnosed as depression
Characteristics of phobic disorders ***
- most common type of anxiety disorder

- irrational fear of something
- some, such as fear of the dark, large animals, begin in childhood and disappear with age

- may be accompanied with hyperventilation, rapid breathing
- facing fear may bring on panic attack
What is social phobia? ***
- excessive worry and self-consciousness in everyday social situations
- fear of being humiliated to the point that it interferes with ordinary activities
- physical symptoms include blushing, profuse sweating, nausea, and difficulty talking.
What is obsessive-compulsive disorder? ***
- obsessions lead to rituals to prevent or get rid of obsessive stimulus

- rituals are patterns of irrational behaviors, or compulsions that provide temporary relief from the anxiety

- patients are often aware of irrational compulsions but cannot stop behavior
What is post-traumatic stress disorder? ***
- exposure to an intense traumatic event or encounters with rape, child abuse, war or other violence

- victims develop persistent frightening thoughts and memories months or years after event

- repeatedly relive experience through nightmares and flashbacks

- avoid reminders of event, startle or frighten easily, may feel detached and numb
- may lose interest in things previously enjoyed, avoid affection, and become irritable or aggressive
How are anxiety disorders treated? ***
- medication
- psychotherapy
What are personality disorders? ***
- persistent, inflexible patterns of behavior that affect interpersonal relationships

- appear in adolescence or early adulthood

- remain stable throughout a person’s lifetime
What are the three categories of personality disorders? ***
Described in DSM-IV in three categories:
- Cluster A: Paranoid and Schizoid
- Cluster B: Antisocial, Borderline, Histrionic, and Narcissistic
- Cluster C: Avoidant, Dependent, and Obsessive- Compulsive
What is a Cluster A personality disorder? ***
paranoid personality:
- indifferent, suspicious, and hostile
- shallow relationships due to tendency to mistrust acts of kindness

schizoid personality:
- appear cold and isolated
- introverted, self-absorbed, and withdrawn
- often deal with fears through superstitions, magical thinking, and unusual beliefs
What is a Cluster B personality disorder? ***
antisocial personality:
- callous disregard for others and
- manipulation of people for personal gratification

borderline personality:
- often occurs in women deprived of care in childhood
- moods are unstable and characterized by crisis and anger alternating with depression

histrionic personality:
- theatrical and exaggerate their emotions

narcissistic personality:
- exaggerated self-image and tendency to think little of others
- expects others to admire their grandiosity and feel entitled to having needs met
What is a Cluster C personality disorder? ***
avoidant personality:
- appear shy and timid
- fear relationships, although have strong desire to feel accepted
- hypersensitive to criticism and rejection

dependent personality:
- extremely poor self-image
- appoint others to make significant decisions our of fear of expressing themselves or offending others
- extended illness may bring out a dependent personality in adults

obsessive-compulsive personality:
- dependable
- meticulous, orderly and intolerant of mistakes
- often high achievers
- attend to details, but never finish the task at hand
- avoid new situations and relationships because they cannot be methodically controlled
What is the treatment for personality disorders? ***
- most people with personality disorders see no need for treatment
- individual, family and group therapy is necessary to point out consequences of behavior

- often secondary medical and psychiatric illnesses force persons with PD to seek treatment

- rigid thoughts and behavior often complicate treatment, and compliance is an issue
- tend to frustrate health care providers

- medication is helpful to relieve anxiety, depression, and psychosis
Characteristics of suicide risk ***
- most often associated with mental illness
- irrational self-directed acts of aggression
- seems an alternative when all is viewed as hopeless with no solutions to problems

those at risk:
- substance abusers,
- those with family history of suicide,
- those with history of sexual abuse,
- those making previous suicide attempts,
- those with history of impulsive, aggressive behavior

- suicidal behavior most often occurs when people experience major losses and stressful events (e.g., divorce, loss of a job, incarceration, and chronic illness)
Warning signs of suicide ***
- withdrawal
- talk of death
- giving away cherished possessions

- sudden shift in mood (severely depressed person may suddenly appear better)

- schizophrenic may progressively develop delusions about death
What is stress? ***
how a person reacts to what happens to them
What is eustress? ***
stress that invigorates
What is the difference between distress and eustress? ***
- the individual's reaction
- the meaning they attach to stress
- how they cope with stress
Distress arises when... ***
imposed demands are perceived to exceed one's ability to cope

(again, it's all about perceptions)
What is the alarm reaction? ***
the body's response to stress

under stress, the body requires more
- glucose and
- oxygen
for extra energy

- hypothalamus regulates internal functioning of body to
- control homeostasis and
- direct proper responses during stressful situations

hypothalamus does this through regulation of ANS and endocrine system
How does the ANS function during stress? ***
hypothalamus stimulates SNS

SNS releases epinephrine
- vasoconstriction of skin and GI
- increased BP
- vasodilation of heart, brain, respiratory tract
- increased respiratory, venous return, cardiac output
- stimulation of liver to release glucose

= more oxygen and glucose for "fight or flight"
How does the endocrine system (hormones) function during stress? ***
hypothalamus stimulates pituitary gland through release of hormones

pituitary gland stimulates:
- adrenal cortex to release corticosteroids--inflammatory response, increased blood glucose
- thyroid gland releases thyroxine--Increased cellular activity (increased energy, body heat)
What happens due to corticosteroid presence in the body for long periods of time? ***
- an excess of anti-inflammatory hormones produced during stress can cause the spread of an infection by weakening the body’s barricade around the infectious organism

- steroids suppress the immune reaction reaction against microorganisms, reducing the patient’s response to infection
Name some stress-related diseases ***
gastrointestinal:
- diarrhea/constipation
- vomiting, eating disorders
- GI ulcers, ulcerative colitis, Crohn’s disease

cardiovascular:
- elevated BP secondary to vasoconstriction of peripheral vessels
- increase of adrenal cortex

sexual function:
- decreased libido, sexual function, impotence

respiratory:
- common cold
- asthma

skin:
- fever blisters
- eczema
- psoriasis
What factors influence wellness? ***
- genetic make-up, family medical history, body size and shape

- family environment, loved ones and friendships

- psychological characteristics: positive self image, ability to manage stress

- external physical environment: food, water, air, work setting, residential setting

- lifestyle: proper diet; regular exercise; avoidance of smoking, alcohol and drug abuse

- unresolved negative emotions: emotional stress, tension, anger
What are the components of a well-balanced diet? ***
High-fiber low-fat diet: research suggests a high fiber, low-fat diet lowers the risk of colon and rectal cancer and leads to lower fatty deposits in arteries

Recommended daily requirement of fiber = 20 to 30 grams of fiber per day
met by eating:
5 servings of fresh or cooked fruit or vegetables
2 slices of whole wheat bread
Peas and beans (legumes) – rich in protein, fiber, and virtually no fat

Vitamins: may relate to cancer protection
Beta carotene: contained in deep yellow and dark green vegetables: carrots, spinach, sweet potatoes, winter squash, and tomatoes

Antioxidants:
Vit C: oranges, grapefruit, strawberries, baked potatoes, and broccoli
Vit E: vegetable oils, leafy greens, and whole grains

Bone density: Vit D needed for absorption of calcium and phosphorus from the GI tract
Vit D – fortified milk and sunlight

Formation of red blood cells: Vit B 12 and folic acid
Sources: lean meat, eggs, dairy products, breakfast cereals
How do cholesterol and triglycerides influence health? ***
cholesterol: does not dissolve in blood, carried on lipoproteins

Total blood cholesterol includes the following:
- LDL: low-density lipoprotein = bad cholesterol (deposits on vascular walls)
- HDL: high-density lipoprotein = good cholesterol (prevents deposits, carries substances away from arteries and to liver) 1/3 to 1/4 of total cholesterol

Triglycerides: form of fat made in body (from carbohydrates)
- levels can generally be reduced with weight reduction, increased exercise, decreased alcohol intake

L(p)a cholesterol: genetic variation of LDL. High levels associated with vascular disease
How does aerobic exercise influence health? ***
regular aerobic exercise improves the body’s ability to utilize oxygen which is necessary to burn calories for the production of energy

aerobic exercise: target heart rate should be maintained for 20 to 30 minutes at least 3 times per week to attain aerobic benefits

Target heart rate = 220 – your age x .70 (moderate intensity)
220 - your age x .90 = (high intensity)
Reforms in the treatment of the mentally ill started after the French Revolution with an Austrian physician named:
Franz Mesmer
Psychiatric diagnoses are categorized in a book named the:
DSM
Which neurotransmitter is implicated in schizophrenia, depression, and ADHD?
dopamine
Which of the following regarding ADHD is false?
a. ADHD is limited to children
b. ADHD is a neurobiological disorder
c. ADHD is more common in males than in females
d. There are three subtypes of ADHD
a. ADHD is limited to children
Medications that replace ________ are effective in improving memory in persons with Alzheimer's disease.
acetylcholine
A false belief that one is being watched or punished is also known as a _______ delusion.
persecutory
Binge eating followed by purging behavior such as self-induced vomiting most commonly occurs in:
bulimia nervosa
Periods of intense mania and depression that last for several weeks is also known as _______.
bipolar I
Adults with bipolar illness may be treated with all of the following types of medications except _______.
a. sedatives
b. antidepressant medications
c. stimulant medications
d. antipsychotic medications
c. stimulant medications
Anxious, irrational thoughts and images are also called _______.
obsessions
Bones are soft in rickets due to a ____ deficiency.
Vitamin D
Osteomalacia affects (bones/joints) of young (children/adults).
bones of adults
Carpal tunnel syndrome is caused by damage to the _______.
median nerve
Biopsy in addition to electromyography is a diagnostic test for __________
Duchenne's MD
________ is the most common form of arthritis.
osteoarthritis
Ankylosis and immobility results in severe _______.
rheumatoid arthritis
Colchicine and corticosteroids are used to treat acute cases of _______.
gout
Which of these is NOT due to calcium deficiency?
a. osteoporosis
b. osteomalacia
c. osteogenic sarcoma
d. rickets
c. osteogenic sarcoma
Which of these is a type of autoimmune disorder?
a. rhabdomyosarcoma
b. Duchenne's MD
c. myasthenia gravis
d. osteitis fibrosa cystica
c. myasthenia gravis
Streptococci and staphylococci are associated with
a. Pott's disease
b. tuberculosis
c. osteomyelitis
d. osteoporosis
c. osteomyelitis
Bacterial infections on the skin may be caused by ________.
staphylococci
A discolored spot of the skin is a _________.
macule
A sac filled with a fluid or semifluid material is a _____.
cyst
The outermost layer of the skin is the ________.
epidermis
In pallor, the skin appears _______.
white
The ________ lies under the dermis and connects the skin to underlying structures.
subcutaneous tissue
Solid elevated areas of the skin are called ________.
papule
Folliculitis is an inflammation of _________.
hair follicles
Pediculosis is a ________ infection.
parasitic
________ is the oily fluid that is released through the hair follicles.
sebum