Radiology Practice

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

Module 18 — Nuclear Medicine & PET-CT

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Question 01 • Single best answer

Where does the detected radiation originate in a nuclear medicine study?

A. The administered radiopharmaceutical B. Only an external ultrasound probe C. Only the MRI magnet D. A conventional X-ray tube in every study

Question 02 • Single best answer

What chiefly determines the physiological meaning of tracer uptake?

A. The radiopharmaceutical used B. Image color alone C. The patient’s height alone D. The size of the report

Question 03 • Single best answer

What does hybrid PET-CT combine?

A. Only two identical radiographs B. Tracer-distribution information and CT anatomy C. Ultrasound and mammography D. MRI and a hearing test

Question 04 • Single best answer

Can the CT component of every PET-CT replace a diagnostic contrast CT?

A. Yes, without checking B. Only if the images are colored C. Yes, because PET removes CT limitations D. No, its purpose and protocol may differ

Question 05 • Single best answer

Why can PET and CT findings become misregistered?

A. Motion between or during acquisitions B. A normal blood group C. Absence of a paper report D. The presence of any benign lesion

Question 06 • Single best answer

Does increased FDG uptake prove malignancy?

A. Yes, for every focus B. Only if the uptake is bright red C. No, inflammation and physiological uptake can also occur D. Yes, when a CT is attached

Question 07 • Single best answer

Which factor can affect FDG interpretation?

A. Blood glucose and preparation B. Only eye color C. Only the radiologist’s screen size D. The patient’s shoe size

Question 08 • Single best answer

Does absent FDG avidity guarantee a lesion is benign?

A. Yes, regardless of lesion size or type B. No C. Yes, if the scan is recent D. Only in a whole-body study

Question 09 • Single best answer

What does a conventional bone scan principally reflect?

A. The exact histology of every bone lesion B. Only cortical fracture lines C. Only joint cartilage thickness D. Tracer activity related to skeletal turnover

Question 10 • Single best answer

How should nuclear medicine aftercare be determined?

A. One identical rule for all studies B. By the tracer, protocol and individual instructions C. A universal month of isolation D. No guidance under any circumstances