N244 WEEK 5 EXAM QUESTIONS WITH
100% ACCURATE ANSWERS
What basic measurements can be use to evaluate hemodynamic status?
*urine output
*heart rate
*blood pressure
How is cardiac index best defined?
The amount of blood pumped by the heart each minute corrected for body size. (Think a fat
person and a skinny person same height and age, and sex)
Stoke volume is heavily influenced by? (3things)
*preload
*afterload
*contractility
What is the one term to represent after load?
resistance (think vessel dilated or constricted)
What do doppler ultrasound hemodynamic monitors measure?
Blood flow vilocity
Using pulse contour analysis, PA line, homonymic monitors, how is stroke volume
measured?
Beat to beat changes in pulse amplitude
What is the normal range for mean arterial pressure (MAP)?
70-90mmHG
Where should the tip of the venous catheter pressure line be positioned?
Vena cave near the entrance of the right atrium.
, What is the correct range for normal central venous pressure?
2-6mmg
Placement of arterial line for direct management of arterial blood pressure has what
advantages? (3)
*It measures minute-by-minute fluctuations in blood pressure.
*it facilitates obtaining frequent blood samples
*it enables arterial pulse contour analysis
Which port of the PA catheter is used to obtain RAP?
Proximal port
The pressure reading from which lumen is constantly measured?
Distal
Why should vasoactive drugs never be infused through the port used for thermodilution
CO determinations?
A bolus injection of a potent drug will occur every time CO is obtained.
What is the best way to delete the balloon on the PA catheter?
Allow the balloon to passively deflate. (this is so damage doesn't occur to the heart)
What is the focus of the national standards regarding a major preventable complication of
the CVP?
*Infection
The thermodilution method of CO is based on which factor?
A change is blood temperature over time.
Which technique is used to increase the accuracy of CO determinations?
Inject normal saline (cooler than blood) smoothly within a four second interval.
What disadvantages are associated with bolus thermodilution CO measurements? (3)
100% ACCURATE ANSWERS
What basic measurements can be use to evaluate hemodynamic status?
*urine output
*heart rate
*blood pressure
How is cardiac index best defined?
The amount of blood pumped by the heart each minute corrected for body size. (Think a fat
person and a skinny person same height and age, and sex)
Stoke volume is heavily influenced by? (3things)
*preload
*afterload
*contractility
What is the one term to represent after load?
resistance (think vessel dilated or constricted)
What do doppler ultrasound hemodynamic monitors measure?
Blood flow vilocity
Using pulse contour analysis, PA line, homonymic monitors, how is stroke volume
measured?
Beat to beat changes in pulse amplitude
What is the normal range for mean arterial pressure (MAP)?
70-90mmHG
Where should the tip of the venous catheter pressure line be positioned?
Vena cave near the entrance of the right atrium.
, What is the correct range for normal central venous pressure?
2-6mmg
Placement of arterial line for direct management of arterial blood pressure has what
advantages? (3)
*It measures minute-by-minute fluctuations in blood pressure.
*it facilitates obtaining frequent blood samples
*it enables arterial pulse contour analysis
Which port of the PA catheter is used to obtain RAP?
Proximal port
The pressure reading from which lumen is constantly measured?
Distal
Why should vasoactive drugs never be infused through the port used for thermodilution
CO determinations?
A bolus injection of a potent drug will occur every time CO is obtained.
What is the best way to delete the balloon on the PA catheter?
Allow the balloon to passively deflate. (this is so damage doesn't occur to the heart)
What is the focus of the national standards regarding a major preventable complication of
the CVP?
*Infection
The thermodilution method of CO is based on which factor?
A change is blood temperature over time.
Which technique is used to increase the accuracy of CO determinations?
Inject normal saline (cooler than blood) smoothly within a four second interval.
What disadvantages are associated with bolus thermodilution CO measurements? (3)
