Hemodynamic Principles Flashcards
True or False?
The dicrotic notch indicates the location of the arterial mean pressure.
True
What valvular event is most closely associated with the dicrotic notch on the PA pressure tracing?
closure of the pulmonic valve
Where is mean pressure is measured.
PCW
AO
PA
femoral artery
What is the equation for MAP?
1 systolic + 2 diastolic
________________
3
How would you calculate pulse pressure?
PP = systolic - diastolic
Left ventricular end diastolic pressure (LV-EDP) readings are normally the same as what other pressure?
Pulmonary capillary Wedge pressure
What does the C wave represent and where can it be found?
In a pulmonary capillary wedge
closure of the pulmonic valve
When is the PC wedge pressure measured during respiration?
end inspiration
Under normal conditions PCW pressures should approximate what three other pressures?
- LA mean
- LV edp
- PA diastolic
True or False?
PA pressures vary with the respiratory cycle.
True
True or False?
Normally the RA mean is less than the RVedp
False
True or False?
In atrial fibrillation there are no a-waves in the RA tracing.
True
True or False?
An RV to RA pullback across a normal tricuspid valve should show no diastolic gradiant.
false
What pressures are needed to assess tricuspid stenosis?
RA and RV
What is the proper scale for an RA waveform?
40
