Hemodynamics Monitoring

Question 1

• The tip of the central venous catheter should reside at the junction of the vena cava and the right atrium. It should NOT ENTER THE RIGHT ATRIUM!
• Correct distance is ___ from the skin to the junction of the VC and RA.

Answer 1

15 cm

Question 2

• ____ increases PVR, creating additional resistance against RV ejection, which can increase RVEDP and can increase CVP.
• A transducer above the zero point ____ CVP.
• ___ produces compressive force around heart, reduces RA compliance and increases CVP.
• A ___ can increase RVEDP and CVP.

Answer 2

• PEEP
• underestimates
• Pericardial tamponade
• VSD

Question 3

• Measure CVP at the ___ and during ___ (normal CVP 1-10)
• CVP is a function of (3)
• High CVP could be indicative of (3)
• Low indicative of low intravascular volume

Answer 3

• phlebostatic axis, end expiration
• intravascular volume, venous tone, RV compliance
• Hypervolemia, reduced ventricular compliance, increased intrathoracic pressure

Question 4

• Name two conditions the increase the amplitude of the A wave on the CVP waveform?
• Tricuspid regurg will cause this on the CVP waveform?

Answer 4

• Tricuspid stenosis and diastolic dysfunction

- Large V wave

Question 5

In which lung zone should the tip of the pulmonary artery catheter be placed?
-In this zone there is a continuous column of blood btw the tip of the PAC and the LV, this provides the most accurate estimation of ?

Answer 5

Zone 3

-LVEDP

Question 6

What 2 conditions cause the PAOP to underestimate LVEDV?

Answer 6

Right BBB and aortic insufficiency

Question 7

What 2 situations underestimate CO?

Answer 7

Injectate volume too high

Injectate temp too cold