CCRN Review- Hemodynamics
What value reflects right ventricular preload? - CVP or RA pressure
In hypovolemic shock, does SVR increase or decrease? - increase
CVP and PAOP are a measure of preload or after load? - preload
Heart rate x stroke volume =? - cardiac output
Stroke volume is dependent on what three concepts? - preload, contractility, and after load
PAOP is a measure of which ventricle? - left
SVR measures which ventricle? - left
PVR measures which ventricle? - right
PVR and SVR are a measure of preload or after load? - afterload
What is a normal cardiac output? - 4-8 L/min
If cardiac output becomes critically low, what will happen to BP? - it will decrease
Bradycardia results in high or low cardiac output? - low
What is the first sign of compensation for a low cardiac output? - increase in HR
, Why does tachycardia decrease cardiac output? - decreased filling time
As stroke volume increase, what happens to cardiac output? - it increases
What is a normal stroke volume? - 50-100 mL/beat
What value reflects left ventricular preload? - PAOP
Term for the volume in the ventricle at the end of diastole - preload
What is a normal cardiac index? - 2.5-4L/min/m2
Term for the resistance against which the ventricle must pump to open the pulmonic or aortic valve -
afterload
If after load increase, what happens to cardiac output? - decreases
What is a normal SvO2? - 60-75%
What is a normal PAOP? - 8-12
What is a normal PA pressure? - 20/8 to 30/15
What is a normal mean PA pressure? - less than 20
What is a normal SVR? - 800-1200
What is a normal PVR? - 50-250
What value reflects right ventricular preload? - CVP or RA pressure
In hypovolemic shock, does SVR increase or decrease? - increase
CVP and PAOP are a measure of preload or after load? - preload
Heart rate x stroke volume =? - cardiac output
Stroke volume is dependent on what three concepts? - preload, contractility, and after load
PAOP is a measure of which ventricle? - left
SVR measures which ventricle? - left
PVR measures which ventricle? - right
PVR and SVR are a measure of preload or after load? - afterload
What is a normal cardiac output? - 4-8 L/min
If cardiac output becomes critically low, what will happen to BP? - it will decrease
Bradycardia results in high or low cardiac output? - low
What is the first sign of compensation for a low cardiac output? - increase in HR
, Why does tachycardia decrease cardiac output? - decreased filling time
As stroke volume increase, what happens to cardiac output? - it increases
What is a normal stroke volume? - 50-100 mL/beat
What value reflects left ventricular preload? - PAOP
Term for the volume in the ventricle at the end of diastole - preload
What is a normal cardiac index? - 2.5-4L/min/m2
Term for the resistance against which the ventricle must pump to open the pulmonic or aortic valve -
afterload
If after load increase, what happens to cardiac output? - decreases
What is a normal SvO2? - 60-75%
What is a normal PAOP? - 8-12
What is a normal PA pressure? - 20/8 to 30/15
What is a normal mean PA pressure? - less than 20
What is a normal SVR? - 800-1200
What is a normal PVR? - 50-250
