UTC Quality Assurance & Standards 2

Question 1

Which organization publishes the primary accreditation standards for diagnostic ultrasound in the United States?

Accepted Answer

American College of Radiology (ACR)

Answer

The ACR publishes accreditation standards and practice parameters for diagnostic ultrasound facilities in the United States.

Question 2

What does the term 'dead zone' refer to in ultrasound quality assurance testing?

Accepted Answer

The region immediately below the transducer face where imaging is not possible

Answer

The dead zone is the near-field region directly beneath the transducer face where returning echoes cannot be detected due to ringdown artifact.

Question 3

When performing a sensitivity QA test on an ultrasound system, what is the primary parameter being evaluated?

Accepted Answer

The system's ability to detect the smallest reflectors at a given depth

Answer

Sensitivity testing evaluates the system's ability to detect weak echoes from small reflectors, confirming adequate penetration depth.

Question 4

A QA phantom shows that the distance between two pins measuring 5 cm reads as 5.3 cm on the ultrasound system. This most likely indicates a problem with:

Accepted Answer

Speed of sound calibration

Answer

Distance measurement errors are caused by incorrect speed of sound calibration in the system, leading to inaccurate depth readings.

Question 5

According to AIUM guidelines, how often should a complete QA equipment evaluation be performed on clinical ultrasound systems?

Accepted Answer

At least annually

Answer

AIUM recommends a complete QA evaluation of ultrasound equipment at least annually to ensure ongoing performance standards.

(UTC) Ultrasound Technologist Certification Practice Test

(UTC) Ultrasound Technologist Certification Practice Test

UTC Quality Assurance & Standards 2