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Flashcards in Hemodynamic Principles Deck (23)
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1
True or False?

The dicrotic notch indicates the location of the arterial mean pressure.

True

2

What valvular event is most closely associated with the dicrotic notch on the PA pressure tracing?

closure of the pulmonic valve

3

Where is mean pressure is measured.

PCW

AO

PA

femoral artery

4

What is the equation for MAP?

1 systolic + 2 diastolic

________________

3

5

How would you calculate pulse pressure?

PP = systolic - diastolic

6

Left ventricular end diastolic pressure  (LV-EDP) readings are normally the same as what other pressure?

Pulmonary capillary Wedge pressure

7

What does the C wave represent and where can it be found?

In a pulmonary capillary wedge

closure of the pulmonic valve

8

When is the PC wedge pressure measured during respiration?

end inspiration

9

Under normal conditions PCW pressures should approximate what three other pressures?

  1. LA mean
  2. LV edp
  3. PA diastolic

 

10
True or False?

PA pressures vary with the respiratory cycle.

True

11
True or False?

Normally the RA mean is less than the RVedp

False

12
True or False?

In atrial fibrillation there are no a-waves in the RA tracing.

True

13
True or False?

An RV to RA pullback across a normal tricuspid valve should show no diastolic gradiant. 

false

14

What pressures are needed to assess tricuspid stenosis?

RA and RV

15

What is the proper scale for an RA waveform?

40

16
True or False?

Normally the PA mean equals the RVedp.

True

17

Absence of an a-wave in the RA waveform is consistent with which rhythm?

atrial fibrillation

18
True or False?

The lowest pressue of all right heart waveforms is the x descent of the RA. It should be zero.

False

19

The diffence between PA systolic and PA diastolic is equal to what?

Pulse Pressure

20

Which pressure is normally the lowest?

RV early diastole

21

What hemodynamic measurement is identified with right heart preload?

RV edp

22

What is the normal pressure for the right ventricle?

25/5

23

What normal positive atrial pressure wave immediately follows QRS complex and closure of the AV valves?

c wave