Shared Flashcard Set

Details

204/FunCohort
med surg
56
Nursing
Undergraduate 2
02/07/2011

Additional Nursing Flashcards

 


 

Cards

Term
Trousseau's Sign
Definition
seen in hypocalcemia, a carpal spasm of the hand when  a blood pressure cuff is inflated about the systolic pressure for several minutes
Term
Diabetes Insipidus
Definition
excessive urination caused by deficiency of ADH, large amounts of diluted urine which causes dehydration and inreases of serum sodium
Term
syndrome of inappropriate antidiuretic hormone (SIADH)
Definition
increased ADH, causes decreased sodium level, decreased urine output, lithium may block renal responses to ADH
Term
osmotic diuresis
Definition

increase in urine output caused by excretion of substances like glucose, contrast dyes

 

Term
atrial natriuretic peptide
Definition
released from cells in the atria of the heart in response to excess blood volume, decreases BP and blood volume, promotes sodium wasting and acts as a potent diuretic. inhibits thirst, reducing fluid intake
Term
calcium gluconate
Definition
used for dangerously high potassium levels, helps control adverse cardiac rhythms, but does not reduce potassium levels
Term
kayexalate
Definition
used to treat hyperkalemia, may be given Po or PR, moves K+ from the blood to intestine to be excreted
Term
lithium
Definition
if hyponatremia occurs, pts taking lithium are at risk for lithium toxicity
Term
ADH
Definition
regulates water excretion from the body, if serum osmolality goes up, then urine output falls, and vice versa
Term
osmolality
Definition
concentration of solutes in body fluid
Term
hypertonic IV fluid
Definition
pulls fluid out of RBC's causing them to shrink
Term
hypotonic IV fluid
Definition
pulls fluid into cells causing them to swell
Term
ACTH
Definition
hormone produced by the anterior lobe of the pituitary gland that stimulates the secretion of cortisol
Term
Selye's theory of adaptation
Definition
syndrome consisting of enlargement of the adrenal cortex, shrinkage of thymus spleen and lymph nodes, and appearance of deep bleeding ulcers. **nonspecific response to diverse, noxious stimuli
Term
General adaptation syndrome
Definition

Alarm: flight or fight response activated w/ release of catecholamines, response is defensive

Resistance: adaptation to the stressor occurs and cortisol activity is increased

Exhaustion: endocrine activity increases, negative effects on body systems that can lead to death

Term
hypothalamus
Definition
mediates the neuronal and hormonal actions that maintian homeostasis
Term
hypothalamus and limbic system together
Definition
regulates emotions and visceral behaviors necessary for survival
Term
cerebral hemispheres
Definition
concerned with cognitive functions
Term
hypothalamic-pituitary response
Definition
longest acting, occurs in persistant stress, hypothalamus secretes corticotropin-releasing factor that stimulates anterior pituitary to produce ACTH which produces cortisol-->stimulates protein synthesis-->liver converts amino acids to glucose and body has store of energy
Term
negative feedback
Definition
monitor the internal environment and restore homeostasis when it shifts out of normal range (blood glucose, acid-base balance, temp, fluid/electrolyte imbalances); organs most affected are the heart, kidneys, liver, lungs, GI tract and skin
Term
positive feedback
Definition
perptuates the chain of events set in motion by the original disturbance instead of compensating for it
Term
rehabilitation act of 1973
Definition
law that protects people from discrimination based on their disabilities; applies to any business person receiving financial support from federal gov't
Term
dementia
Definition
characterized by a general decline in higher brain functioning such as reasoning, with a pattern of eventual decline in ability to perform ADLs
Term
alzheimers disease
Definition

progressive, irreversible, degenerative disease; characterized by gradual loss of cognitive function and disturbances in brain behavior and affect;

neurofibrillary tangles or plaques in brain

Term
balanced analgesia
Definition
using more than one form of pain management concurrently to obtain more pain relief with fewer side effects
Term
pain
Definition

unpleasant sensory and emotional experience associated with actual or potential tissue damage

 

Term
pain threshold
Definition
the point at which a stimulus is perceived as painful
Term
pain tolerance
Definition
the maximum intensity or duration of pain that a person is able to endure
Term
endorphins and enkephalins
Definition
morphine like substances produced by the body that have to potential to reduce pain
Term
prostaglandins
Definition
increase the sensitivity of pain receptors by enhancing the pain-provoking effect of bradykinin
Term
nociception
Definition
activation of sensory transduction in nerves by thermal, mechanical or chemical energy on special nerve ending (nerves convey info about tissue damage to the CNS); includes tranduction, transmission, modulation, and perception
Term
transduction
Definition
noxious stimuli trigger the release of biochemical mediators that sensitize nociceptors; also causes movement of ions across cell membranes which excites nociceptors; pain meds work in this phase by blocking the production of prostaglandin
Term
transmission
Definition

1: pain impulse travels from peripheral nerves to spinal cord with the aide of substance P

2: transmission from the spinal cord to the brain stem and thalamus

3. transmission of signals between the thalamus to the somatic sensory cortex where pain perception occurs (pain control can occur by blocking the release of substance P)

Term
modulation
Definition
"descending system"; neurons in the thalamus and brain stem send signals down to the dorsal horn of the spinal cord and release susbsances such as endogenous opioids, serotonin and norepinephrine which can inhibit the ascending painful impulses in the dorsal horn
Term
perception
Definition
the client becomes conscious of the pain
Term

algogenic

 

Definition
pain causing substances released into the EC tissue as a result of damage
Term
opioid analgesics
Definition
causes respiratory depression and sedation, n/v, constipation, tolerance and addiction is very possible; inhibit acitivty of ascending nociceptive pathways
Term

NSAIDs

 

Definition
decrease pain by inhibiting cyclooxygenase (enzyme involved in production of prostaglandin)
Term
local anesthetics
Definition
block nerve conduction, applied to nerve fibers
Term
adverse efects of analgesics
Definition
respiratory depression, sedation, pruritus, N/V, constipation
Term
general anesthesia
Definition

pts are not arousable, cannot feel pain

stage 1: warmth dizziness, feeling of detachment, ringing in ears, still conscious

stage 2: excitment, shouting, crying laughing etc, pupils dilate but contract

stage 3: surgical anesthesia, unconscious and quiet, RR are regular, skin is flushed

stage 4: medullary depression, cyanosis, rapid HR, irregular RR, death can occur

Term
regional anesthesia
Definition

injected around nerves, pt is awake aware of suroundings

-epidural-diffuses accross spinal cord to provide anesthesia and pain relief, blocks sensory, motor, autonomic funcitons, doses are higher no headache

-spinal-extensive, produces anesthesia of lower half, n/v and pain may occur during, headache after

Term
moderate sedation
Definition
conscious sedation; reduce anxiety and contol pain during procedures, depress LOC to a mod level,
Term
monitored anesthesia
Definition
moderate sedation that requires monitoring from anesthetist in case rapid general anesthesia is needed
Term
potential intraop problems
Definition
n/v, anaphylaxis, hypoxia and other respiratory problems, hypothermia and malignant hypothermia
Term
hyponatremia
Definition

sodium <135

occurs d/t imbalance of water

S&S: poor skin turgor, dry mucosa, headache, orthostatic BP, N/V ab cramps, altered mental status

Term
hypernatremia
Definition

sodium>145

S&S: restlessness, weakness, disorientation, delusions, hallucinations, thirst, dry swollen tongue, sticky mucosa

Term
hyperkalemia
Definition

potassium >5

S&S:ab pain, tingling fingers, skeletal muscle weakness and even paralysis, paralysis of resp and speech muscles

tx: kayexalate PO

Term
hypokalemia
Definition

potassium <3.5

S&S: fatigue, anorexia, n/vm muslce weakness, leg cramps, decreased bowel motility, numbness, tingling, dysrhythmias, glucose intolerance, thirst

**potassium should only be administered through an infusion pump!

Term
assessment by pacu nurse
Definition

airway

o2 sat

cardio

LOC

return of gag refulx

activity(can pt move all extremities)

fluid status

op site/tubes/drains

pain level

check for n/v

side rails up/call light in reach

 

 

Term

1st intention wound healing

 

Definition
incision wound with wound edges approximated
Term
2nd intention wound healing
Definition

edges not approximated

wound is left open to drain

left to heal by granulation

Term
third intention wound healing
Definition

deep wounds that are not sutured, will be at a later time

deeper wider scarring

Term
post op nursing care plan
Definition

ABC
pain

n/v

fluids

make sure pt t/db/c q2h

Term
reason for deep breathing postop
Definition

reduce pneumonia

opens alveoli to increase O2

rid anesthesia

increase lung expansion

decrease lung secretions

Supporting users have an ad free experience!