PA HTN Tutorial Quiz

Q1 (of 8): PA hypertensive crisis: Select all of the following parameters expected to decrease after PVR increases to 20

CVP

Correct Incorrect Correct answer

PCWP

Correct Incorrect Correct answer

Pulmonary blood flow

Correct Incorrect Correct answer

Systemic Blood Flow

Correct Incorrect Correct answer

Peripheral O2 saturation

Correct Incorrect Correct answer

Q2 (of 8): Restore default parameter values. Create 10mm ASD. Select all of the following parameters expected to DECREASE:

CVP

Correct Incorrect Correct answer

PCWP

Correct Incorrect Correct answer

Pulmonary blood flow

Correct Incorrect Correct answer

Systemic blood flow

Correct Incorrect Correct answer

Peripheral O2 saturation

Correct Incorrect Correct answer

Q3 (of 8): With ASD patent, raise PVR to 20. The presence of the ASD alters the response to a pulmonary hypertensive crisis in which of the following ways:

Systemic flow is greater than pulmonary flow

Correct Incorrect Correct answer

Peripheral O2 saturation is lowered

Correct Incorrect Correct answer

Systemic blood pressure is better preserved

Correct Incorrect Correct answer

Systemic venous oxygen saturation is increased

Correct Incorrect Correct answer

Q4 (of 8): Restore default parameters. Create a 10mm valved Potts shunt. Select all of the correct statements:

Pulmonary flow is increased

Correct Incorrect Correct answer

Systemic flow is increased

Correct Incorrect Correct answer

Peripheral O2 saturation is reduced

Correct Incorrect Correct answer

None of the above

Correct Incorrect Correct answer

Q5 (of 8): With the valved Potts shunt patent, select all of the following changes that occur when PVR is increased to 20:

RV stroke volume increases

Correct Incorrect Correct answer

PCWP decreases

Correct Incorrect Correct answer

LV stroke volume increases

Correct Incorrect Correct answer

O2 saturation in the LV decreases substantially

Correct Incorrect Correct answer

Peripheral O2 saturation decreases substantially

Correct Incorrect Correct answer

Q6 (of 8): With the potts shunt patent and PVR 20, add V-V ECMO. How much ECMO flow is required to raise peripheral O2 sat above 95?

1.5

Correct Incorrect Correct answer

2.5

Correct Incorrect Correct answer

3.5

Correct Incorrect Correct answer

4.5

Correct Incorrect Correct answer

Q7 (of 8): With Potts shunt patent and PVR 20, turn off V-V ECMO and achieve steady state. Now turn on V-A ECMO at 3.0k RPM. Select all of the following hemodynamic changes attributable to VA ECMO:

PA flow is reduced

Correct Incorrect Correct answer

Systemic flow is reduced

Correct Incorrect Correct answer

Flow in the Potts shunt is abolished

Correct Incorrect Correct answer

Peripheral O2 saturation is increased

Correct Incorrect Correct answer

Final Question: With Potts shunt patent and PVR 20, turn off V-A ECMO and achieve steady state. Now turn on RVAD support (RA-PA) at 3.5k RPM. Select all of the following hemodynamic changes attributable to VA ECMO:

RV stroke volume reduces

Correct Incorrect Correct answer

LV stroke volume reduces

Correct Incorrect Correct answer

Flow in Potts shunt increases

Correct Incorrect Correct answer

Peripheral O2 saturation decreases

Correct Incorrect Correct answer

Systemic venous saturation increases

Correct Incorrect Correct answer

PA HTN Tutorial Quiz

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