Echocardiogram Testing and Quality Assurance 5

Question 1

Which organization provides widely recognized guidelines for ultrasound equipment quality assurance in the United States?

Accepted Answer

AIUM (American Institute of Ultrasound in Medicine)

Answer

The AIUM publishes widely adopted guidelines for ultrasound equipment QA, covering testing methods, frequencies, and acceptable performance standards.

Question 2

A sonographer notices that spectral Doppler waveforms have a 'noisy' baseline even when the sample volume is placed in a non-moving region. This artifact is most consistent with:

Accepted Answer

Electronic noise or wall filter set too low

Answer

Noisy spectral baseline in a non-moving region suggests electronic noise or an inappropriately low wall filter that allows low-frequency clutter into the display.

Question 3

When documenting QA results, which information is LEAST critical to include in the QA log?

Accepted Answer

Patient name from the most recent exam

Answer

Patient names are confidential and irrelevant to equipment QA documentation; QA logs track equipment performance, not patient-specific information.

Question 4

What effect does operating an echocardiography system at a higher mechanical index (MI) have on image quality QA testing?

Accepted Answer

Increases acoustic output and can cause nonlinear bubble behavior in phantoms with microbubbles

Answer

Higher MI increases acoustic output and can cause nonlinear effects and bubble destruction in contrast phantom materials, affecting the validity of certain QA measurements.

Question 5

Which of the following is an example of a 'process quality indicator' in an echocardiography lab QA program?

Accepted Answer

The number of technically adequate studies completed per month

Answer

A process quality indicator such as the rate of technically adequate studies measures the quality of the imaging process and workflow, not just equipment specifications.

(Echocardiogram) Certified Echocardiogram Technician Practice Test

(Echocardiogram) Certified Echocardiogram Technician Practice Test

Echocardiogram Testing and Quality Assurance 5