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95 Cards in this Set

  • Front
  • Back

The random movement of particles in all directions

Diffusion

The natural tendency is for a substance to move from an area of _____ concentration to an area of _____ concentration.

Higher; lower

One example is the movement of ______ from the alveoli to the pulmonary capillaries

Oxygen

The concentration of oxygen in the alveoli is ______ than in the capillaries; therefore oxygen diffuses unto the capillaries and is transported through the _______ to other parts of the body

Greater; bloodstream

_____ is when a carrier protein transports the molecule through membranes toward an area of lower concentration. This process does not require ______.

Facilitated diffusion; energy

An increase in body of water

Fluid overload

Two types of excess fluid volume

Extracellular and intracellular

Extracellular fluid excess

Isotonic

Intracellular fluid excess

Hypotonic

Excess fluid volume may result from ______ and ______ failure with retention of fluid, increased ADH production, overload with isotonic IV fluids, or administration of D5W after surgery or trauma

Renal and cardiac

The body attempts to compensate for excess fluid volume by __ the filtration and excretion of sodium and water by the kidneys and decreasing the production of ___

Increasing; ADH

The severity of the __ in excess fluid volume depends on how quickly the condition develops

Symptoms

Severe excess fluid volume can cause or aggravate __ and __

Heart failure and pulmonary edema

Occurs when the body retains too much hydrogen ions or loses too many bicarbonate ions with

Metabolic acidosis

With too much acid and too little base the ph of blood

Falls

When the ph falls it leads to __ because the lungs try to compensate by blowing off co2 and lowering paco2 levels which __ the ph.

Hyperventilation; raises

Starvation, dehydration, diarrhea, shock, renal failure & diabetic ketoacidosis cause what?

Metabolic acidosis

Changing levels of consciousness, headache, vomiting, diarrhea, anorexia, muscle weakness and cardiac dysrhythmias are signs & symptoms of what?

Metabolic acidosis

Assessment of the patient in metabolic acidosis should focus on?

Vital signs, mental status, and neurological status

Substances from an area of lower concentration to an area of equal or greater concentration

Active transport

The transfer of water and solutes through a membrane from an area of high pressure to an area of low pressure

Filtration

Movement across a membrane from a less concentration to a more concentration solution

Osmosis

When electrolytes are broken down in water they become

Ions

Positively charged ions

Cation

Negatively charged ions

Anion

Sodium, potassium, calcium and magnesium are all

Cations

Chloride, bicarbonate, and phosphate are all

Anions

The concentration of a solution by number of dissolved particles per kg of water

Osmolality

Controls water movement and distribution by regulating the concentration of fluid in each body fluid compartment

Osmolality

Check the patients urine output before administering

Potassium

Urine output should be no less than

30 ml/hr

__ is always diluted before administration and is never given IV push.

Potassium

Rapid infusion of potassium can cause

Cardiac arrest

Patients with decreased renal function, people in metabolic acidosis and people taking potassium supplements are at risk for this

Hyperkalemia

What drug promotes excretion of excess potassium through the intestinal tract?

Kayexalate

Earliest sign of fluid deficit in older adults

Constipation

An __ hematocrit is seen with deficient fluid volume and dehydration because blood is more concentrated

Increased

__ is consistent with excess fluid volume because of dilution

Low hematocrit

Normal range for hematocrit

Men- 40-54%


Women- 38-47%

Older adults often have a reduced sense of __ and therefor may be in a state of chronic __.

thirst; dehydration

Fluid requirements for ages 55 to 65

30 ml/kg

Fluid requirements for ages 65 and older

25 ml/kg

Pulse, respirations, temperature and blood pressure can indicate changes in?

Fluid and electrolyte imbalance

Urine characteristics also give clues to?

Fluid balance

Darker, concentrated urine indicates the kidneys are?

Retaining water

Dry, flushed skin indicates

Dehydration

Pale, cool, clammy skin indicates

severe fluid volume deficit that occurs with shock

soft eyeballs and sunken eyes indicate

severely deficient fluid volume

puffy eyelids and fuller cheeks suggest

excess fluid volume

measured by pinching the skin over the sternum, clavicle, or the forehead

skin turgor

In patients that are __, skin flattens more slowly after the pinch is released

dehydrated

reflects water and sodium retention, which can result from excessive reabsorption or inadequate secretion of sodium

edema

depression remains in the tissue after pressure is applied with a finger tip

pitting

sodium excess causes the tongue to appear?

red and swollen

less water than normal in the body

fluid volume deficit

the body attempts to compensate for fluid volume deficit by?

decreasing urine output

when in fluid volume deficit the heart rate?

increases



when in fluid volume deficit the blood pressure?

decreases

timing of heat application?

no more than 30 minutes at a time

pain experienced by fresh surgical patients -- physician may order around the clock meds for first 24-48 hours

predictable pain

timing for cold application in order to prevent tissue injury or frostbite

15 minutes at a time

cold is contraindicated for patients with peripheral vascular disease or heart disease because it may cause?

further vasoconstriction of blood vessels and decrease circulation

requires a physician's order and is handled by the physical therapy department

TENS unit

this therapy involves external electrical stimulation on the skin and underlying tissues through electrodes attached to a small unit that the patient can carry around;


delivers low-voltage electrical currents to block pain signals

TENS unit

blocks effects at receptor sites;


designed to produce analgesia and block certain side effects

opioid agonist-antagonist

pain experienced in a location different from its source

referred pain

side effects of opioids

constipation; sedation; respiratory depression

JACHO says all patients must be assessed for this upon admission, on a regular basis and after intervention

pain assessment

__ is whatever the person experiencing it says it is and exists whenever they say it does

pain

To administer Morphine IM you may need to use what size needle?

1.5 inch

Factors that cause gate to open

tissue damage; a monotonous environment; and fear of pain

stimulation of large diameter fibers can close the gate and interfere with impulse transmission between spinal cord and the brain causing?

diminished pain perception

afferent and efferent pathways of the central nervous system carry the messages for?

interpretation

nerves that carry messages TO the brain for interpretation

afferent pathways

nerves that carry messages AWAY from the brain via the spinal cord

efferent pathways

natural opioid like substances that block transmission of painful impulses to the brain

endorphins; serotonin; norepinephrine

pneumonic for identifying warning signs associated with cancer

C-change in bowl or bladder habits


A-a sore that does not heal


U-unusual bleeding or discharge


T-thickening or lump in a breast or elsewhere


I-indigestion or difficulty swallowing


O-obvious change in wart or mole


N-nagging cough or hoarseness

cells that are relatively harmless, primarily because they do not spread to other parts of the body

benign cells

cells that change in appearance from normal cells or tissue of origin

malignant cells



a cardiotoxic drug used to treat cancer, antitumor antibiotic, antineoplastic drugs, classified as biotherapy

adriamycin

toxic effect on heart can lead to?

heart failure

common cancer sites for women

breast; lung; colon; rectum; uterine corpus; thyroid

common cancer sites for men

prostate; lung; bronchus; colon; rectum; and urinary bladder

standard dose of Roxanol

10 or 15 mg

for cancer pain

Roxanol

detects cancer cells in cervical smear, specimens of body fluids, secretions, or tissues are obtained and examined microscopically to detect the presence of malignant cells

pap smear

these patients should remember that although they are going to die eventually, they are living now and can still have some pleasure

terminally ill

sedation scale

S-sleeping but easily aroused


1-awake and alert


2-slightly drowsy


3-frequently drowsy; drifts to sleep (Alert RN)


4-no response (emergency)

Stages of Cancer




Stage 1

malignant cells are confined to the tissue of the origin; no invasion of other tissues takes place

Stages of Cancer




Stage 2

limited spread of the cancer occurs in the local area, usually to nearby lymph nodes

Stages of Cancer




Stage 3

the tumor is larger or has spread from the site or origin to nearby tissues (or both); regional lymph nodes are likely to be involved

Stages of Cancer




Stage 4

cancer has metastasized to distant parts of the body; also described as advanced stage

TNM Staging System for Cancer

T- tumor 2, 3, 4


N- regional lymph nodes


M- distant membranes

once a therapeutic limit is reached, increases in dose may produce side effects but no further beneficial effects

ceiling effect

the most dangerous adverse effect of antineoplastic drugs used in chemotherapy

bone marrow suppression