Radiology Assessment

20 learning units • 10 questions per unit • 200 explained questions

Module 05 — Ultrasound & Doppler Fundamentals

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Question 01 • Single best answer

What does an ultrasound transducer primarily send and receive?

A. X-rays and gamma rays B. Sound pulses and echoes C. Only static magnetic fields D. Visible light through the skin

Question 02 • Single best answer

Which probe generally offers better superficial detail but less penetration?

A. A lower-frequency probe in every circumstance B. A probe with no coupling C. An X-ray detector D. A higher-frequency probe

Question 03 • Single best answer

Why is coupling gel used?

A. To reduce the air gap and improve sound transmission B. To provide ionizing radiation C. To replace disinfection D. To create intravenous contrast

Question 04 • Single best answer

What does anechoic mean?

A. Always malignant B. Always calcified C. Increased MRI signal D. No internal echoes under the imaging conditions

Question 05 • Single best answer

What is a typical effect behind a strongly shadowing calculus?

A. Uniform enhancement of all deeper tissues B. New arterial flow C. Reduced returning echoes distally D. Increased MRI diffusion

Question 06 • Single best answer

Why might a deep abdominal structure be poorly seen on ultrasound?

A. Overlying bowel gas B. Absence of X-ray exposure C. A normal blood pressure alone D. The use of sound rather than a radiotracer

Question 07 • Single best answer

An ultrasound report says the appendix was not visualized. What does this mean?

A. The study did not directly establish a normal appendix B. Appendicitis is excluded C. The appendix is surgically absent D. The appendix is definitely perforated

Question 08 • Single best answer

Does red on color Doppler always mean an artery?

A. Yes, regardless of settings B. Only when the image is enlarged C. No, it depends on flow direction and the color map D. Yes, because venous blood cannot reflect sound

Question 09 • Single best answer

Absent color flow in a vessel requires what consideration?

A. Immediate proof of occlusion from color alone B. Proof that the vessel is a vein C. Settings, slow flow, angle and true occlusion D. Proof that contrast was omitted incorrectly

Question 10 • Single best answer

What limits the meaning of a negative focused bedside ultrasound?

A. It excludes every disease in the body B. It replaces all departmental imaging C. It cannot ever provide useful information D. It answers a defined question within acquired views and operator scope

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