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Echo URR Exam Questions and Answers |100% Pass

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Echo URR Exam Questions and Answers |100% Pass You identify a PFO on an echo and the cardiologist asks you to calculate the LAP. How will you perform this calculation? - Answer-Measure the peak velocity across the PFO, calculate the peak pressure gradient across the defect and add the RAP. The...

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  • October 7, 2024
  • 87
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • URR
  • URR
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EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024

Echo URR Exam Questions and
Answers |100% Pass

You identify a PFO on an echo and the cardiologist asks you to calculate the LAP. How

will you perform this calculation? - Answer✔✔-Measure the peak velocity across the

PFO, calculate the peak pressure gradient across the defect and add the RAP.

The mitral deceleration time is 300msec. What is the valve area? A) 1.3cm^2 B)

2.8cm^2 C) 2.5cm^2 D) 1.5cm^2 - Answer✔✔-C) 2.5cm^2 MVA = 759 / deceleration

time

Which of the following is preferred to document motion of the disk in a St. Jude valve? -

Answer✔✔-M-mode. M-mode is used to doc the MOTION of ball/disk in a mechanical

valve. Doppler is used to assess the FLOW of the valve.

A patient presents for an echo to rule out WMA. The TTE 2D exam is suboptimal. What

should you do next? A) cancel the order and dismiss the patient B) consult the

physician for permission to perform contrast imaging C) cancel the order and schedule

the patient for a TEE D) contact the ordering physician to recommend that an MRI exam

is ordered instead - Answer✔✔-B) consult the physician for permission to perform

contrast imaging; Suboptimal imaging of the LV wall motion on a 2D exam is an

indication for contrast administration. A physician order for the contrast must be given,

prior to performing the contrast exam.




1/87

,EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
Which Doppler measurement of flow through a stenotic AV best correlated w/ the same

value obtained during heart catheterization? - Answer✔✔-mean pressure gradient

Which of the following cardiac abnormalities requires the use of the continuity equation

for proper calculation of AVA? A) decreased LV function B) HOCM C) supravalvular AS

D) Transcatheter AVR - Answer✔✔-A) decreased LV function; The continuity

equation compensates for the changes in LV function when calculating AVA. CW

Doppler is used to assess flow across the AV. Because CW Doppler has no range

resolution, it cannot determine the location of the elevated velocity. HOCM and

supravalvular stenosis will cause an improper AVA calculation b/c the stenosis is not at

the valve. A transcatheter AV replacement relies on the pressure gradients and the

velocity ratio to assess stenosis.

The peak velocity of PI can be used to assess:

A) Peak systolic pulmonary artery pressure

B) mean pulmonary artery pressure

C) pulmonary artery end diastolic pressure

D) severity of pulmonary stenosis - Answer✔✔-B) mean pulmonary artery pressure;

MPAP =4 x (peak velocity of PI)^2 The peak velocity of PI is peak diastolic velocity so it

cannot be used to assess systolic pressure. The end diastolic velocity of PI can be used

to assess the end diastolic pressure in the PA.

If the LVOT Doppler tracing is obtained from a location that is too far from the AV:

A) the SV will be overestimated

B) the AVA will be overestimated by the continuity equation

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,EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
C) the LVOT velocity will be overestimated

D) the AVA will be underestimated by continuity equation - Answer✔✔-D) the AVA

will be underestimated by continuity equation; If the Doppler cursor is placed too far

from the AV, the LVOT peak velocity will be reduced from what it would be at the correct

location. This will cause the calculation of a smaller or underestimated AVA or

overestimated level of stenosis. The peak aortic velocity and pressure gradient will not

match the level of stenosis indicated by AVA.

What Doppler measurement is necessary to calculate the end diastolic pressure in the

pulmonary artery?

A) peak pressure gradient of PI

B) peak pressure of TR

C) end diastolic velocity of PI

D) peak systolic velocity of PI - Answer✔✔-C) end diastolic velocity of PI; PA end

diastolic pressure = 4 (end diastolic pressure velocity of PI)^2 + RA pressure; normal

PAEDP + 4-12mmhg

If _________________ is present, the RVSP calculation from the TR gradient is

inaccurate as the measurement of the PAP.

A) CHF

B) PI

C) PS

D) PHTN - Answer✔✔-C) PS; The PA pressure is used to assess the pressure in the

lungs. If the PV is stenotic, the flow velocity and resistance increase the pressures

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, EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER
©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
within the RV, TR is then related to the increased pressure at the valve instead of the

lungs.

Which of the following correctly describes how AS is evaluated by catheterization?

A) the catheter is placed at the AV to assess the peak pressure gradient

B) Doppler ultrasound is used to assess the flow velocity in the LVOT and at the AV

C) the catheter is placed in the LV and then advanced through the AV to assess the

pressure difference

D) the intracoronary transducer is inserted into the aorta to assess the peak pressure -

Answer✔✔-C)

Which of the following correctly describes how to measure the acceleration time of the

PV waveform?

A) measure the time from onset of sys to the systolic peak

B) trace the waveform from start to finish

C) measure the slope of the line from the onset of systole to the systolic peak

D) measure the distance from the onset of sys to the systolic peak - Answer✔✔-A)

When is imaging performed during a stress echo using a supine exercise bike?

A) within 30 sec after the cessation of exercise

B) within 60 sec after the cessation of exercise

C) during peak exercise

D) when the HR increases by 50% from the rest - Answer✔✔-C) bc the supine

exercise bike is normally used for valvular assessment, imaging is performed at peak

exercise to obtain the peak velocity

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