CVICU TEST LATEST
Primary effects of IABP counterpulsation therapy are ______
myocardial oxygen demand and _______myocardial oxygen supply -
ANSWERS-decreased;increased
Placement of IABP - ANSWERS-the tip of the catheter is just distal to
the left subclavian artery.
The IABP will be timed to deflate before _______ - ANSWERS-The
aortic valve opens
The IABP will be timed to inflate at the _______ - ANSWERS-dicrotic
notch
With the IABP, what signifies the beginning of diastole - ANSWERS-
the dicrotic notch.
What is diastolic augmentation? - ANSWERS-The increase in aortic
pressure as a result of balloon inflation, forcing blood back toward the
heart, increasing perfusion to the coronaries.
What is impella? - ANSWERS-a percutaneously inserted LVAD.
Increases MAP and CO
END OF
PAGE 1
, CVICU TEST LATEST
Uses for impella? - ANSWERS-heart failure, cardiogenic shock- it
unloads the heart- then you can find out what is causing shock.
Where does the impella sit? - ANSWERS-With the distal end in the left
ventricle, across the aortic valve, with its outlet in the proximal aorta.
How does impella generate cardiac output? - ANSWERS-the faster it
turns, the more CO you have.
SVO2 Normal - ANSWERS->60%
Low SVO2 - ANSWERS-Inadequate oxygen delivery or increased
oxygen consumption
Ex: fever, pain, bleeding, infection
High SVO2 - ANSWERS-increase in CO, decrease in oxygen demand,
reduction in oxygen extraction
Ex: anesthesia, hypothermia
CVP Normal - ANSWERS-2-6
END OF
PAGE 2
Primary effects of IABP counterpulsation therapy are ______
myocardial oxygen demand and _______myocardial oxygen supply -
ANSWERS-decreased;increased
Placement of IABP - ANSWERS-the tip of the catheter is just distal to
the left subclavian artery.
The IABP will be timed to deflate before _______ - ANSWERS-The
aortic valve opens
The IABP will be timed to inflate at the _______ - ANSWERS-dicrotic
notch
With the IABP, what signifies the beginning of diastole - ANSWERS-
the dicrotic notch.
What is diastolic augmentation? - ANSWERS-The increase in aortic
pressure as a result of balloon inflation, forcing blood back toward the
heart, increasing perfusion to the coronaries.
What is impella? - ANSWERS-a percutaneously inserted LVAD.
Increases MAP and CO
END OF
PAGE 1
, CVICU TEST LATEST
Uses for impella? - ANSWERS-heart failure, cardiogenic shock- it
unloads the heart- then you can find out what is causing shock.
Where does the impella sit? - ANSWERS-With the distal end in the left
ventricle, across the aortic valve, with its outlet in the proximal aorta.
How does impella generate cardiac output? - ANSWERS-the faster it
turns, the more CO you have.
SVO2 Normal - ANSWERS->60%
Low SVO2 - ANSWERS-Inadequate oxygen delivery or increased
oxygen consumption
Ex: fever, pain, bleeding, infection
High SVO2 - ANSWERS-increase in CO, decrease in oxygen demand,
reduction in oxygen extraction
Ex: anesthesia, hypothermia
CVP Normal - ANSWERS-2-6
END OF
PAGE 2
