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100 Cards in this Set

  • Front
  • Back
Acute vs. Chronic wounds (4)
Acute
1)result from direct injury or trauma
2)follow normal course of healing (most healed within 4wks)

Chronic
1)normal sequence of repair is lost (parts of wounds may be in different phases)
2)fail to show normal signs of healing in 4wks
Ex of Chronic wounds (4), acute wounds (5)
C)ischemic arterial ulcers
C)venous stasis ulcers
C)diabetic foot ulcers
C)decubitus or pressure ulcers

A)abrasions
A)incisions
A)lacerations
A)punctures
A)bites
FIRST two phases of wound repair
a)coagulation (3)
b)inflammation (3)
a)vasoconstriction
a)platelet aggregation
a)fibrin clot formation

b)vasodilation- allows PMNs and monocytes to infiltrate wound (chemotaxis)
b)macrophages replace PMN as primary inflammatory cell
b)then phagocytosis of bacteria and tissue debris and release of growth factors to signal initiaion of new tissue growth
SECOND two phases of wound repair
a)proliferative/migration phase (4)
b)remodeling (3)
a)begins 2-3d after injury
a)formation of granulation tissue (and new capillaries and blood vessels too)
a)re-epithelialization (migration of keratinocytes from edges of wound)
a)contraction of wound (myofibroblasts contract the edges of wound together)

b)last 3wks to 2years
b)continued deposition and reorganization of collagen
b)scar tissue will only be 80% as strong as original tissue
Wound characteristics THAT AFFECT WOUND REPAIR (7)
Type of Wound
a)wound w/ NO tissue loss can be apposed to facilitate more rapid healing (like laceration, NOT abrasion)

Anatomic site of wound
a)highly vascular areas heal quicker
b)lower extremities heal slower
c)areas difficult to keep disinfected heal slower (ex perianal)
d)areas prone to friction/mvmnt heal slower (knees/elbow)
e)cold temp decr healing
Presence of Infexn (FACTOR THAT AFFECTS WOUND REPAIR)
a)terms relating to it (contamination, colonization, critical coloniztion, infexn)
b)impair wound healing by... (4)
a)contamination- non-replicating bacteria in wound
a)colonization- bacteria replicate, but lack numbers/pathogenicity to inhibit normal wound healing
a)critical colonization- point @ which bacterial load begins to impair wound healing (10^5 bacteria per g of tissue)
a)infexn- bacterial load overwhelms host defenses and impairs healing

b)prevents re-epithelialization
b)prolong inflammatory phase
b)promoting excess tissue destruction
b)delaying collagen synthesis
Wound environment (FACTORS AFFECTS WOUND REPAIR) (5)
Dry wound site (crusty/scab)
a)delay wound healing
a)delay migration of keratinocytes

Excessively Wet Wound Site
b)delay wound healing
b)maceration of surrounding skin
b)infexn
Tissue perfusion/environment (FACTORS AFFECTS WOUND REPAIR) (4)
If poor perfusion
a)impaired leukocyte activity
a)decr production of collagen (O2 if cofactor in collagen syn)
a)can be caused by DM, COPD, CHF, PVD
a)decr epithelialization
MEDS affecting wound repair
a)steroids (6)
b)anti-inflammatory agents (2)
c)immunosuppressant
d)chemo drugs (2)
a)inhibits inflammatory phase
a)decr collagen syn
a)delays epithelialization
a)delays angiogenesis
a)inhibits contraction
a)incr susceptibility of infexn

b)inhibits inflammatory phase
b)impairs platelet aggregation

c)impairs immune response

d)inhibits proliferation of cells
d)inhibits DNA syn
Pt related factors that affect wound healing (5)
1)obesity
2)incr age
3)protein-calorie malnutrition
4)vitamins A/C/E, selenium, thiamine, pantothenic acid, Zn, Cu, Mn essential for healing
5)having DM, chronic renal failure, anemia/sickle cell
Mneumonic for factors adversely affecting healing
DIDN'T HEAL
D iabetes
I nfexn
D rugs
N utritional status
T issue necrosis
H ypoxia
E xcessive tension
A nother wound
L ow temperature
Tx of Acute minor wounds (2)
1)cleanse wound thoroughly to remove bacteria/debris
2)use topical antiseptics for application to INTACT skin on area AROUND wound
Topical Antiseptics
a)Hydrogen Peroxide (2)
b)Alcohols (3)
c)Camphorated Phenol (2)
d)Iodine/Povidone-iodine (4)
e)Benzalkonium Chloride
a)enzymatic release of oxygen (effervescent cleansing axn)
a)recommend AGAINST USE; limited bactericidal effect and risk of tissue damage

b)good bacteriocidal activity
b)direct application to wound can cause tissue irritation/further damage
b)will cause drying of skin

c)should be applied to dry skin ONLY
c)do NOT use a bandage w/ this agent

d)active against bacteria, fungi, virus, spores, protozoa, yeast
d)can stain skin
d)both cause further damage to wound
d)do NOT recommend colorless or decolorized iodine (NOT effective as antiseptics)

e)for G+ only
For Acute wound prevention of infexn use.. (4) and likely pathogens (2)
1)topical abx
2)protect the wound
3)systemic abx
4)vaccination

1)staph/strep skin flora
2)G+
Topical Abx and acute wounds
a)bacitracin (2)
b)polymyxin (2)
c)neomycin (3)
d)TCNs (3)
a)G+
a)availilabe in single ingredient and combo w/ others

b)G-
b)availabile in combo ONLY

c)G- and some staph
c)available in single ingredient and combo
c)high rate of hypersensitivity (3-13%)

d)G+ and G-
d)limited availability
d)high incidence of resistance (OFTEN ineffective)
Acute wounds
a)protecting it (4)
b)systemic abx (2)
a)cover w/ sterile, breathable bandage
a)keep wound clean
a)avoid excessive moisture/dryness
a)change bandage q24-48h (clean wound b/w changes and allow exposure to air)

b)routine use NOT recommended
b)use ONLY if wound if dog/cat/human bite, intraoral laceration, periorbital trauma
When to give TETANUS Vaccination w/ Acute Wounds******* (5)
1)clean, minor wound w/ unknown vacc history or less than 3 doses
2)clean, minor wound whose had 3 or more doses BUT over 10y since last dose
3)all other wounds w/ unknown vacc hx or less than 3 doses
4)all other wounds w/ 3 or more doses, BUT over 5y since last dose
5)use TIG in all other wounds w/ unknown vacc hx or less than 3 doses
Tx of chronic wounds (4)
1)debridement
2)topical abx to reduce wound colonization (polymicrobial, mupriocin good for MRSA, gentamicin for pseudomonas)
3)systemic abx
4)PDGF
Debridement of chronic wounds (5)
1)remove slough, eschar, exudates, bacterial biofilms and callus from wound bed

2)converts chronic to acute wounds via
a)sharp debridement- most rapid and precise
b)wet-to-dry debridement
c)autolytic debridement (moisture donating dressings)
d)enzymatic debridement- has enzymes that target fibrin/collage
Systemic abx and chronic wounds (3)
1)used when signs of tissue invasion and/or systemic symptoms are present
2)typically polymicrobial infexn
3)duration of tx based on ulcer classification, response to tx, presence of osteomyelitis
Honey and wound tx (4)
1)promotes formation of granulation tissues and epithelial cell growth
2)anti-inflammatory effects (decr wound exudates/edema)
3)antibacterial and antifungal activity
4)called Medihoney dressings
Granulated Sugar and wound tx (2 and 4 disadv)
a1)high osmolarity and decr pH to 5 to prevent bacterial growth
a2)accelerates granulation tissue formation, decr odor/drainage/edema

d)may cause burning sensation
d)may be contamination
d)requires multiple dressing changes per day
d)reported case of hyperglycemia and renal insufficiency
Sugar paste and wound tx (3)
1)sugar + glycerin, PEG, povidone-iodine
2)does NOT burn
3)can be made in thick/thin consistency in an effect to reach all areas of wound
Wound dressing (adv/disadv)
a)gauzes (2/2)
b)films (4/3)
a)inexpensive
a)accessible
d)drying
d)poor barrier

a)moisure-retentive
a)transparent
a)semi-occlusive
a)protects from contamination
d)no absorption
d)fluid trapping
d)skin trapping
Wound dressing (adv/disadv)
a)hydrogels (3/1)
b)alginates and hydrofibers (2/2)
c)foams (3/2)
a)moisure-retentive
a)non-traumatic removal
a)pain relief
d)may over hydrate

a)highly absorbed
a)hemostatic
d)fibrous debris
d)lateral wicking

a)absorbent
a)thermal insulation
a)occlusive
d)opaque
d)malodorous discharge
Principle of Wound care (4)
1)gentle soap/water can be used to clean wounds
2)avoid H2O2/alcohol b/c can worsen tissue damage (apply to intact skin only)
3)wounds heal optimally in a moist environment
4)observe for factors that may compromise a pt's ability to heal
Burning vs Tanning (4)
1)burning is NONadaptive mechanism
2)burning results in vasodilator mediators (histamines, PGs, cytokines)
3)burning causes incr blood flow, erythema, tissue exudates, edema and warmth
4)severe burns can results in 2nd degree burn w/ blisters, fever, chills, weakness, shock
UVB (think b for burning) penetrates into dermis and causes and inflammatory response consisting of... (4)
1)erythema 3-5h after exposure
2)peaks in 12-24h post exposure
3)begins to resolve in 72h
4)typically responsible for blistering, desquamation, tanning and skin cancer
Incr risk of sunburn/photosensitization w/ these agents (10)
1)sulfonylureas
2)diuretics
3)NSAIDs
4)antihistamines
5)amiodarone
6)phenothiazines
7)isotretinoin
8)FQs
9)TCNs
10)OCs
Sun exposure protections (w/ chemical sunscreens) (4)
1)products w/ SPF 30+ usually have greater amounts of chemical sunscreens (or atleast 3 different sunscreens)= incr risk of allergic rxns
2)efficacy depends on: skin type, environmental factors, amt of sunscreen applied
3)SPF 15 blocks 93% of UVB; SPF 30 blocks 97% of UVB (will NEVER get 100% no matter the SPF w/ chem sunscreen)
4)FDA says SPF of 30 gives enough protection for all skin types to prevent cancer and photoaging
Sunscreens
a)aminobenzoic acid (PABA) (2)
b)anthranilates
c)benzophenones (2)
d)salicylates (2)
e)physical sunscreens (2)

e)cinnamates
f)dibenzoylmethane derivatives (just know these 2 exist)
a)penetrates into skin for more long-lastin effects
a)can cause contact dermatitis, photosensitivity, sting/dry/yellowing

b)absorbs UVA (usually in combo w/ other agents)

c)absorb UVB mostly
c)oxybenzone found in cosmetics

d)weak sunscreen
d)must be used in high []s and in combo w/ other agents

e)scatter UVR rather than absorb it (so 100% protection)
e)white or colored substance + zinc oxide or titanium dioxide
Sunscreen MOA (2)

How much to apply?
a)incr UVR absorption by sunscreen rather than by skin
a)most penetrate and bind to the stratum corneum

b)apply liberally
Practical issues to remember on sunscreen (5)
1)prefer water resistant
a)SPF will be maintained after 2 twenty min dips in pool
b)very water resistant sunscreen SPF is maintain after 4 twenty min dips in pool
2)apply 30-45min prior to sun exposure

3)if NOT water proof reapply every 30min after sweating, swimming, toweling off
Self-management Tx of 1st degree sunburns (5)
1)NSAIDs or ASA
2)topical analgesics (camphor or menthol)
3)topical anti-inflammatory (hydrocortisone/aloe)
4)cooling compress
5)cool baths (colloidal oatmeal)
Severe 1st/2nd degree sunburns tx (6 and last one has 4)
1)should be eval by Dr.
2)may use tx in 1st degree burns as well
3)oral antihistamine
4)oral steroids
5)check for s/sx of infexn in burn site

6)topical anesthetics (benzocaine/lidocaine)
a)duration of axn 15-45min
b)admin 3-4x/d
c)use sparingly
d)not apply to raw, blistered or abraded skin
If sunburn has ____ refer
bubbles
Exclusions to self tx of burns (5)
1)burn to over 2% of BSA
2)burn involves eyes, ears, face, hands, feet
3)chemical, electrical, inhalation burns
4)incr age
5)immunocomp or multiple medical disorders
Goals of care in severe burns (7)
1)prevent deepening of wound
2)relieve pain
3)provide protective environment for wound to heal
4)prevent infexn of wound
5)provide appropriate resuscitation and preservation of organ system fxns
6)preserve physical fxn
7)tx complications aggressively
Goals of care in severe burns
1)prevent deepening of wound
2)relieve pain
3)provide protective environment for wound to heal (2)
4)prevent infexn of wound (2)
a)cold water compress or cold water soaks

b)analgesics, cold water compress

c)sterile, non-adherent dressing to cover the wound (change q24-48h)
c)2nd layer of absorbent gauze to keep first layer place

d)cleanse wound w/ hypoallergenic soap
d)apply sterile dressing to cover wound and topical abx
Goals of care in severe burns
5)provide appropriate resuscitation and preservation of organ system fxns
6)preserve physical fxn (3)
7)tx complications aggressively (2)
a)fluids, O2

b)PT
b)skin grafts
b)minimize keloid scars and contractures

c)adequate nutrition/fluid replacement
c)abx of established infexns
Fluids and tx of severe burns (4)
1)give in first 24-48h to prevent shock, organ failure, death
2)have large amount of fluid and electrolytes in extravascular spce due to release of vasoactive mediators and capillary damage
3)incr amounts of fluids, proteins, lytes in open wound
4)#3= decr blood volume, decr CO, decr tissue/organ perf
What fluids to give to replace fluids in severe burn pts, how to replace, what to monitor (5)
1)cystalloid fluids (NS or lactated ringers; LR preferred)
2)colloidal (hetastarch, albumin, plasma)- not initially

Initial replacement (BASED ON % TOTAL OF BSA BURNED***)
a)use Parkland formula to figure amount for adults
b)use Graves formula to figure amount for kids

3)After replacement monitor goal BP, HR (want under 120), UO (want 0.5-1cc/kg/h)
Oxygen and severe burns (3)

Pain management and burns (2)
1)give if incr CO inhalation
2)admin 100% O2 by mask
3)intubate if necessary

1)may have incr pain med use based on amt of pain, incr metabolism, and tolerance development
2)opioids/MORPHINE best (IV, PCA, or po)
Nutrition and burns
a)metabolic rate
b)result of rate (4)
c)what to give/how (3)
a)incr by 2-3x normal

b)severe muscle wasting
b)decr muscle strength
b)fatty liver/hepatomegaly
b)incr risk for fracture

c)give early enteral feedings (more physiological, cost effective, avoids central line complications)
c)assure appropriate electrolyte replacement and maintenance
c)incr protein and caloric requirements by 2x
Abx/wound management (which ones) (4 and 1 thing and which is best)
1)Td (vaccine)- see wound management
2)silver sulfadiazine******
3)mafenide acetate
4)silver nitrate solution
5)BE SURE appropriate cleansing of the wound and protective bandages
Silver Sulfadiazine and burn tx
a)spectrum
b)desc/application (3)
c)istructions
d)ADR's
e)CI (3)
a)cover G+ and G-, Candida and pseudomonas

b)most effective if applied IMMEDIATELY POST THERMAL INJURY to prevent bacterial colonization
b)penetrates the eschar
b)easy/painless to apply

c)1/4in cream bid; remove qd

d)neutropenia in 1st wk (will resolve)

e)pregnancy/nursing
e)sulfa allergy
e)application to eyes/mouth
Mafenide and burn tx
a)spectrum
b)desc (3)
c)instruction
d)ADRs (2)
e)CI
a)G+ and G-

b)primary used post-skin graft as prophylaxis
b)penetrates the eshar
b)painful to apply (pain lasts 30min after application)

c)apply 1/4in cream bid, remove qd

d)burning/pain w/ application
d)inhibits carbonic anhydrase (decr bicarb = acidosis)

e)sulfa allergy
Silver Nitrate Solution and burn tx
a)desc/application (2)
b)instructions
c)ADRs (2)
a)best if applied immediately post thermal injury
a)will NOT WORK in an established infexn OR IF ESHAR is formed

b)apply soaks 2-3x/d, moistening q2h (soak in fabric and wrap)

c)incr risk of loss of K/Cl/Na/Ca
c)stain skin/clothing
Risk factors for developing drug induced skin rxns (7)
1)incr age
2)genetic predisposition (slow acetylator)
3)hx of allergic rxns
4)hepatic/renal dysfxn
5)ROA (topical > IV > oral)
6)incr dose/duration of use
7)altered immune status
Immunologic skin rxns (8)
1)maculopapular eruptions
2)urticaria/angioedema
3)fixed drug eruptions
4)vasculitis
5)AGEP
6)DIHS/DRESS
7)drug-induced lupus
8)SJS/TEN
Non-immunologic skin rxns (4)
1)photosensitivity eruptions (photoallergy or phototoxic)
2)dyspigmentation
3)warfarin-induced necrosis
4)warfarin-induced purple toe syndrome
Maculopapular eruptions
a)pathogenesis (2)
b)presentation (5)
a)cell-mediated (type 4) OR
a)humoral immune-complex mechanisms (type 3)

b)most common type of drug-induced skin rxn
b)erythematous macules/papules
b)begin on trunk or pressure areas
b)usually progress in symmetrical patterns
b)may be associated w/ severe pruritis/fever
Maculopapular eruptions
a)onset/duration (2)
b)management (4)
a)onset occurs within 1wk of initiation of tx
a)duration is under 2wks after dc of med

b)dc of suspected med
b)cool water baths/compresses
b)oral antihistamines for pruritis
b)topical steroids for inflammation/pruritis
Urticaria/Angioedema
a)pathogenesis (2)
b)urticaria presentation (4)
c)angioedema presentation (2)
a)acute urticaria is IgE mediated (type 1) OR drug-induced mast cell degranulation (non-immune)
a)serum sickness (immune-complexes -- Type 3)

b)raised, defined, pruritic wheals
b)pale in center and red on outside
b)variable size/# of lesions
b)may be 1st manifestation of anaphylaxis

c)urticarial swelling of deep dermal and SQ tissues and mucous membranes
c)typically involves mouth, lips, tongue
Urticaria/Angioedema
a)onset/duration (4)
b)management (4)
a)onset can be very rapid (min to hrs of drug exposure)
a)duration of INDIVIDUAL LESIONS is under 24h
a)urticarial rxn can last for wks, considered chronic if over 6wks
a)angioedema can resolve after 1-2h or persist for 2-5d

b)dc suspected med
b)oral antihistamine
b)if systemic involvement (hypotension)- short course of steroids
b)if anaphylaxis (epi/steroids)
Fixed drug eruptions
a)presentation (5)
a)erythematous or hyperpigmented lesion
a)round/oval
a)sometimes feature bullae/vesicles, desquamation follows
a)preferentially occurs in the oral mucosa or genitalia
a)lesions present in same site upon re-exposure (ie fixed)******
Fixed drug eruptions
a)onset/duration (3)
b)management (3)
a)onset within hours to few wks after initiation of med
a)duration is 7-10d after dc of suspected med
a)may have residual hyperpigmentation for yrs

b)dc of suspected med
b)topical steroids may help reduce intensity of rxn
b)re-challenge w/ lower dose of suspected med to confirm dx****
Vasculitis
a)pathogenesis
b)presentation (3)
a)type3 hypersensitivity rxn

b)purpuric lesions w/ irregular margins on legs, butt, trunk
b)range from pinpoint to several cm
b)other lesions: macules, hemorrhagic blisters, ulcers
Vasculitis
a)onset/duration (2)
b)management (3)
a)onset within 7-21d of initiation of med
a)may persist for up to 4wks

b)dc suspected med
b)supportive- bed rest, compression of lesions
b)systemic steroids/immunosuppressants in severe cases
AGEP
a)pathogenesis
b)presentaion (4)
a)T-cell mediated (type4)

b)small non-follicular pustules overlying edematous skin
b)may coalesce and lead to ulceration
b)accompanied by FEVER and ELEVATED NEUTROPHIL counts****
b)usually begins on face or intertingiousn area
AGEP
a)onset/duration (3)
b)management (2)
a)onset within few days of initiating med (abx)
a)later onset, 7-14d, w/ other meds (diltiazem, chloroquine)
a)resolve spontaneously in under 15d

b)dc suspected med
b)supportive care
DIHS/DRESS
a)presentation (3)
a)widespread erythematous eruption
a)w/ fever, FACIAL/PERIORBITAL EDEMA and EOSINPHILIA*******
a)morality up to 10%
DIHS/DRESS
a)onset/duration (2)
b)management (3)
a)cutaneous rxn begins 2-8wks after initiation of med
a)s/sx may persist for several wks

b)dc of suspected med
b)systemic steroids for severe cases
b)high potency topical steroids (augmented betamethasone)
Drug induced lupus
a)pathogenesis
b)predisposing factors (4)
c)presentation (3)
a)due to development of autoantibodies

b)50-70yo
b)females=males
b)white > blacks (in terms of risk)
b)slow acetylators

c)variant of autoimmune lupus (idiopathic lupus)
c)"butterfly rash"
c)presence of antinuclear antibodies
Drug induced lupus
a)onset/duration (2)
b)management (3)
a)can present months to yrs after exposure to med
a)resolves within days to months after dc of culprit med

b)dc suspected med
b)NSAIDs may help resolve symptoms faster
b)steroids for severe cases
SJS
a)pathogenesis
b)presentation (5)
a)cell-mediated (type4)

b)1-14d is prodromal period w/ n/v, conjunctiv/pharyngitis, my/arthralgia
b)purpuric lesions and extensive blistering
b)mortality is 5%
b)can have mucosal involvement
b)epidermal deatchment up to 10% of BSA******
SJS
a)onset/duration (2)
b)managmenet (4)
a)1-3wks after start of med
a)healing occurs in 3-4wks

b)dc suspected med IMMEDIATELY (decr mortality if dc'd quicker)
b)systemic steroids
b)fluid replacement/TPN
b)drug re-challenge is NEVER justified
TEN
a)pathogenesis
b)presentation (6)
a)cell mediated (type4)

b)same prodromal phase as SJS (1-14d)
b)acute phase has fever, burning, painful rash on face/trunk
b)then is widespread FULL-thickness epidermal necrosis and detachment*****
b)involves over 30% of BSA
b)common to involve mucous membranes
b)high morality rate (40%)--usually due to infexn
TEN
a)onset/duration (2)
b)management (4)
a)occurs 1-3wks after intiation of med
a)phenytoin-induced TEN occurs 2-8wks after initiation

b)dc suspected med
b)F/E/TPN
b)tx/prevent infexn
b)high doses of IVIG and use of immunosuppressive agents
b)steroid use controversial
Meds involved w/
a)Maculopapular eruptions (5)
b)Urticaria (and 1 tx) (6)
c)Angioedema
a)PCNs (highest rates)
a)cephalosporins
a)sulfonamides
a)phenytoin
a)tegretol

b)PCNs
b)cephalosporins
b)sulfonamides
b)TCN
b)opioids
b)vancomycin (redman; premed w/ diphen or slow infusion)

c)ACEI's
Meds involved w/
a)fixed drug eruptioins (8)
b)vasculitis (5)
a)barbituates
a)tegretol
a)lamotrigine
a)metronidazole
a)PCN
a)TCN
a)Bactrim
a)NSAIDs

b)allpurinol
b)MTX
b)minocycline
b)hydralazine
b)propylthiouracil
Meds involved w/
a)AGEP (6)
b)DIHS/DRESS (10)
a)cephalosporins
a)chloroquine/hydroxychloroquine
a)diltiazem
a)dexamethasone
a)amoxicillin/ampicillin
a)macrolides

b)abacavir
b)atenolol
b)captopril
b)tegretol
b)diltiazem
b)isoniazid
b)lamotrigine
b)NSAIDs
b)phenytoin
b)Bactrim
Meds involved w/
a)drug induced lupus (6)
b)SJS/TEN (7)
a)diltiazem
a)hydralazine
a)quinidine
a)isoniazid
a)minocycline
a)procainamide

b)B-lactams
b)tegretol
b)lamotrigine
b)NSAIDs
b)phenytoin
b)sulfomamides
b)Bactrim
Photosensitivity rxns
a)pathogenesis (phototoxic) (2)
b)pathogenesis (phototallergic) (2)

c)presentation (phototoxic) (2)
d)presentation (photoallergic) (2)
a)drug acts as chromophore and absorbs UV (generates free rads)
a)dose dependent response

b)UV causes drug to bind as hapten to protein on epidermal cells (IMMUNOLOGIC)
b)NOT dose dependent

c)severe sunburn (blistering)
c)confined to areas exposed to light

d)pruritis exzema eruption
d)can spread beyond areas exposed to light
Phototoxic rxn
a)onset/duration of toxic/allergic (1each)
b)phototoxic management (3)
c)photoallergy management (3)
d)management for both
e)drugs
a)phototoxic- rxns evident 5-20h after exposure to drug AND light
a)photoallergic- rxns occur 24-72h after exposure to drug AND light (slower b/c immune mediated; fyi)

b)NO need to stop med
b)routine burn care
b)provide protection from additional sunlight exposure

c)dc suspected med
c)oral antihistamine for s/sx relief
c)topical steroids

d)PROTECTION FROM SUN

e)see drugs in sunburn lecture
Dyspigmentation
a)pathogenesis (2)
b)presentation (2)
c)management (2)
a)incr melanin synthesis
a)cutaneous deposition of drug related material

b)pigmentation may be widespread or local
b)deposits can occasionally occur in internal organs

c)dc med (especially w/ antimalarials)
c)avoid sun exposure
Dyspigmentation
a)onset/duration/meds (3)
Antimalarials- after 4mon of tx; return to normal several mon after dc of med (blue-grey)

Minocycline- after long term use or high cumulative dose; gradually fades upon dc (blue-grey/brown)

Amiodarone- after long term use or dose over 400mg/d; resovles over months to yrs following dc (slate gray)
Warfarin induced necrosis
a)pathogenesis (3)
b)presentation (3)
c)onset/duration
d)management (3)
a)associated w/ protein C deficiency (natural anticoag and is vitK dependent)
a)results in hypercoagulation and thrombosis in microvasculature
a)may be dose related (LD)

b)demarcated, erythematous, pupuric lesions
b)can progress to hemorrhagic bullae w/ eventual necrosis
b)females > males

c)occurs b/w 3-10d of tx w/ warfarin

d)dc warfarin
d)admin vitK and heparin
d)most do NOT develop necrosis upon re-initiation
Warfarin-induced purple toe syndrome
a)pathogenesis (2)
b)presentation (3)
c)onset/duration (2)
d)management (2)
a)related to cholesterol emboli from plaques
a)NOT related to warfarin dose

b)characterized by sudden discolorization of toes/sides of feet
b)affected area is cold/tender to touch w/ burning sensation
b)males > females

c)develops after 3-8wks of tx
c)toe pain resolves after dc, but purple color persists

d)dc warfarin
d)try to reinitiate circulation
Dandruff
a)clinical presentation (3)
b)etiology/pathophys (3)
a)ACCELERATED EPIDERMAL GROWTH
a)diffuse patchy white/gray scales on scalp
a)scales do NOT itch

b)hyperproliferative skin disorder
b)incr skin turnover w/ abnormal skin
b)dandruff cell turnover is 13-15d (normal is 25-30d)
Seborrheic dermatitis
a)clinical presentation (4)
b)etiology/pathophys (4)
a)chronic, inflammatory condition associated w/ pruritis or burning
a)affects areas of head and trunk w/ most sebasceous gland activity
a)has oily, yellowish scales
a)mostly happens in older ppl; can see cradle cap in young kids

b)cell turnover is 9-10d (incr epidermal production)
b)enhanced sebaceous gland activity
b)genetic predisposition
b)may involve fungus P.ovale
Agents to use w/ seborrheic dermatitis AND dandruff (8)
a)pyrithione zine (cytostatic)
b)selenium sulfide (cytostatic)
c)coal tar (cytostatic)
d)salicylic acid (keratolytic)
e)sulfur (keratolytic)
f)ketoconazole/miconazole/clotrmazle (antifungal)
g)terbinafine
h)hydrocortisone (NOT IN DANDRUFF)
Pyrithione zinc (DANDRUFF/SEBORRHEIC)
a)administration
b)desc (3)
a)apply to scalp and leave on 5-10min; rinse

b)use qd initially then twice weekly as needed
b)absorption incr w/ contact, time, freq of application
b)can use on scalp, face, body
Selenium Sulfide (DANDRUFF/SEBORRHEIC)
a)admin
b)desc (4)
c)ADR (3)
a)apply to scalp leave on 5-10min; rinse

b)use qd initially then twice weekly as needed
b)absorption incr w/ time
b)apply to intact skin only (systemic toxicity)
b)can use on scalp, face, body

c)discoloration of white/blonde hair
c)irritating to eyes/scalp
c)hair loss
Coal Tar (DANDRUFF/SEBORRHEIC)
a)admin
b)desc (4)
c)ADR (3)
a)apply and leave 5-10min; some applied hs and left overnight

b)use daily as needed then as needed
b)do NOT use for over 6mon w/o monitoring
b)Goeckerman method (used in combo w/ UV)
b)can use in scalp, face, body

c)messy/stains skin
c)strong odor
c)folliculitis/rash/irritaion
MOA of ____ dandruff/seborrheic agents:
a)cytostatic agents
b)keratolytic agents (2)
c)antifungal
d)topical steroids (3)
a)decr epithelial cell turnover rate

b)decr epithelial turnover
b)loose/lyse keratin aggragates causing removal from scalp in smaller particles

c)active against P.ovale

d)anti-inflam/anti-mitotic/anti-pruritic
d)vasoconstrictive
d)immunosuppressive
Salicylic acid (DANDRUFF/SEBORRHEIC)
a)admin
b)desc (3)
c)ADR
a)apply and leave in 5-10min; rinse

b)keratolytic effect can take 2-10d
b)can use on scalp, face, body
b)risk of toxicity if applied over large areas

c)irritation of skin/mucous membranes
Sulfur (DANDRUFF/SEBORRHEIC)
a)admin
b)desc (2)
c)ADR
a)apply for 5-10min; remove

b)often combined w/ salicylic acid
b)can use on scalp, face, body

c)irritation of skin/mucous membranes
Ketoconazole (DANDRUFF/SEBORRHEIC)
a)admin (shampoo/cream) (2)
b)ADR (2)
c)use of shampoo/cream (2)
a)shampoo for 1-3min and rinse for 2x/wk w/ 3d b/w tx for 4wks
a)cream apply qqd or bid to affected areas for 4wks

b)skin irritation/stinging/pruritis
b)hair loss

c)can use on scalp, face, body
c)can only use on face, body
Miconazole/clotrimazole/terbinafine (DANDRUFF/SEBORRHEIC)
a)admin
b)ADR
d)use

Hydrocortisone
a)admin
a)apply qd or bid
b)skin irritation/pruritis
c)face and body only

a)apply bid to qid; do NOT use for over 7d w/o MD monitoring
Psoriasis
a)presentation (6)
1)chronic inflammatory condition
2)males=females
3)rapid turnover and hyperkeratinization of epithelial cells
4)exacerbations/remissions common
5)plaques are sharply demarcated, dry, thick skin
6)have silvery/white scale and are red
Psoriasis
a)etiology/pathophys (4)
b)triggers (4)
a)malfxn in T-cell immunity
a)cell turnover is 3-4d
a)abnormal pattern of keratinzation
a)genetics

b)skin trauma
b)infexn
b)climate may exacerbate/alleviate
b)meds like antimalarials, BB, steroid withdrawal
Topical Agents used in Psoriasis (8)
1)emollients (glycerin)
2)keratolytic agents (salicylic acid)
3)Coal tar
4)topical steroids
5)anthralin
6)Calcipotriene (vit D3)
7)Tazarotene
8)Topical psoralens (methoxsalen)
Systemic Agents used in Psoriasis (6)
1)oral psoralens (methoxsalen)
2)MTX (first line)
3)oral retinoids (acitretin)
4)cyclosporine (first line too)
5)tacrolimus
6)hydroxyurea
Biologic Agents used in Psoriasis (5) and risk w/ all of them
1)infliximab
2)etanercept
3)alefacept
4)efalizumab
5)adalimumab

RISK OF INFEXN W/ ALL
Infliximab (PSORIASIS)
a)MOA
b)dosing
c)ADR (4)
d)special considerations (3)
a)inhibits TNF alpha
b)5mg/kg IV over 2h

c)infusion rxns
c)URI
c)nausea/ab pain
c)fever

d)TB skin testing
d)CI in severe CHF****
d)avoid live vaccines
Etanercept (PSORIASIS)
a)MOA
b)dosing
c)ADR (4)
d)special considerations (2)
a)inhibit TNF alpha
b)25mg SQ twice weekly

c)injexn site rxns
c)HA
c)rhinitis
c)URI

d)CI in pts w/ sepsis*****
d)rotate injexn sites
Adalimumab (PSORIASIS)
a)MOA
b)dosing
c)ADR (4)
d)special considerations
a)inhibits TNF alpha
b)40mg SQ weekly or every other week

c)injexn site rxns
c)rhinitis
c)HA
c)flu-like s/sx

d)TB skin testing
Alefacept (PSORIASIS)
a)MOA
b)dosing
c)ADR (4)
d)special considerations
a)decr T-cell counts (immunosuppress)
b)7.5mg IV weekly; 15mg IM x12wks

c)injexn site rxns
c)pharyngitis
c)myalgia
c)CV events

d)NOT in gutt, pust or erythrodermic psoriasis
Efalizumab (PSORIASIS)
a)MOA
b)dosing
c)ADR (3)
d)special considerations (2)
a)inhibits Tcells by CD11 inhibitor
b)1mg/kg SQ weekly x12wks

c)HA
c)flu-like s/sx
c)myalgia

d)NOT in gutt, pust or erythrodermic psoriasis
d)NO in pts w/ allergies/asthma