mish mash Flashcards
vagus nerve
activation typically leads to reduction in HR, BP, or both
if circulatory changes are great enough, vasovagal syncope (sudden drop in CO causes cerebral hypoperfusion)
parasympathetic
suction nota bene x4
- hyperoxygenate with 100% O2 - 2 minutes before and after
- stop advancing catheter upon meeting resistance or at cough
- suction when going out, intermittent, no longer than 10 seconds
- can stimulate vagus nerve - HR drops (stop and hyperoxygenate)
pernicious anemia
decrease in red blood cells when the body can’t absorb enough vitamin B-12
risk factor for stomach cancer
achlorhydria
absence of hydrochloric acid in the gastric secretions
risk factor for stomach cancer
s/s stomach obstruction + tx
abdominal distention
N/V
pain
tx: NPO, NG tube to suction for decompression
Schilling’s Test
measures urinary excretion of B-12 for dx of pernicious anemia
primary prevention
prevent actual occurrence (sunblock, not smoking, etc)
secondary prevention
screenings to detect early disease - greater chance for cure or control
infiltration vs extravasation
leak vs irritant
s/s extravasation
pain, swelling, no blood return
dehiscence
wound separating
evisceration
organs out
mydriasis
pupil dilation
miosis
pupil constriction
venturi mask
most accurate oxygen delivery system
patients at risk for CO2 retention (ex: COPD patients) benefit because FiO2 can be controlled
nasal canula
low-flow delivery system