P&P PA Catheters Flashcards
(23 cards)
distance from the right internal jugular vein to the right atrium
15 cm
As it is advanced to about ______, the catheter will enter the right atrium and display the right atrial pressure.
15-25 cm
Between _______, the catheter will be within the right ventricle and the much larger right ventricular pressure waveform will be displayed.
25-35 cm
At _________, the catheter is typically within the pulmonary artery.
35-45 cm
PAOP occurs when
40-50cm total, in pulmonary artery - wedged
PAOP waveform is similar to a CVP waveform, but with slightly ______ pressure that reflects those of the ______
higher
left atrium
What West lung zone is considered ideal for placement of a PAC? why?
it should be placed in an area within West lung zone III BC the PAP is greater than the pulmonary venous pressure which is in turn greater than the alveolar pressure in this position
What measurements can a pulmonary artery catheter make directly?
The PAC allows for direct measurement of pulmonary artery pressures
What measurements can a pulmonary artery catheter make indirectly?
- left ventricular filling pressure, right-sided cardiac output
Measurements such as PVR and SVR are calculations made on data observed directly and indirectly.
-PAOP estimates the LV end-diastolic pressure (preload). - PCWP is the LV equivalent of the CVP for the right ventricle.
When inserting a pulmonary artery catheter via the right internal jugular vein, what are the distances the catheter must travel to reach the cardiac and pulmonary structures?
Right atrium: 15-25 cm,
right ventricle: 25-35 cm, pulmonary artery: 35-45 cm, pulmonary artery wedge position: 40-50 cm
What conditions would make monitoring core body temperature via a pulmonary artery catheter inaccurate?
Thoracotomy and cardiopulmonary bypass can render pulmonary artery temperatures unreliable.
Standard PAC has a _____circumference, is ______in length marked at 10-cm intervals, and contains four internal lumina
7.0- to 9.0-Fr circumference
110 cm in length
Which port is used for PA pressure monitoring?
Distal
Which port is used for CVP monitoring?
2nd to last port (30cm more proximal)
What position would you place patient in to pass PAC past tricuspid valve?
Head down
Position that will encourage flotation out of the right ventricle
tilting the patient onto the right side and placing the head up
primary complication observed during pulmonary artery catheterization
Arrhythmias
When should PAOP be measured?
End expiration
You are inserting a pulmonary artery catheter via the right internal jugular vein. At what distance would you expect to reach the pulmonary artery?
35-45 cm
When the balloon of a PA catheter is not inflated, what pressures are reflected during diastole?
pulmonary artery diastolic pressure (LA pressure)
Ideally, a pulmonary artery catheter should be positioned in
West lung zone III
When the balloon of a pulmonary artery catheter is inflated, what pressure can be obtained indirectly during ventricular systole?
LA filling pressure
When the balloon of a pulmonary artery catheter is inflated, what pressure can be obtained indirectly during ventricular diastole?
LV filling pressure
