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NURO670 final Exam Questions With Correct
Answers
indications for PA catheter - answers✔✔Dx/management of shock states
assessment of volume status
oliguric ARF
titration of meds for cardiogenic shock
Frank-Starling Law - answers✔✔The greater the ventricle is stretched, the greater the force of
contraction to a point- beyond that, increased preload (overstretching) can decrease ejected volume
a wave - answers✔✔rise in pressure from atrial contraction
c wave - answers✔✔rise in pressure from ventricular contraction
x descent - answers✔✔relaxation of atria
v wave - answers✔✔filling of atria
y descent - answers✔✔filling of ventricles
overdampened - answers✔✔waveform less distinct
underdampened - answers✔✔waveform features exaggerated
when should values be obtained - answers✔✔at end expiration (lowest thoracic pressure)
when is the PAOP most accurate - answers✔✔when the catheter tip is in lung zone 3
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11/11/2024 11:25AM
what is preload - answers✔✔filling pressure, stretching force of blood volume against ventricles
what is afterload - answers✔✔force opposing ventricular contraction
factors affecting preload - answers✔✔venous return
venous tone
atrial kick
ventricular contractility
factors affecting afterload - answers✔✔primary pHTN
hypoxia
systemic arterial pressure
systemic arterial tone
drugs
what is contractility - answers✔✔the force of the contraction
stroke volume - answers✔✔amount of blood ejected per heart beat
CO - answers✔✔amount of blood circulated per minute (HRxSV)
CI - answers✔✔CO adjusted for body size
factors affecting contractility - answers✔✔preload
afterload
drugs
electrolytes
SNS tone
acid/base balance
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11/11/2024 11:25AM
hypoxia
pathology
neurohormonal agents
normal RA pressure - answers✔✔2-6
normal CVP - answers✔✔2-6
normal LAP - answers✔✔8-12
normal PAOP - answers✔✔8-12
causes of distributive shock - answers✔✔sepsis
anaphylaxis
hypovolemia
adrenal insufficiency
cardiogenic shock - answers✔✔low CO, high PAOP, nl RAP, high CVP, high SVR
septic shock values - answers✔✔high CO, low PAOP, low RAP, low CVP, low SVR
hypovolemic shock - answers✔✔low CO, low PAOP, low RAP, low CVP, high SVR
factors affecting 02 consumption - answers✔✔fever
sepsis
increased WOB
seizures
agitation
pain