The most important aspect of the radioisotopes used in PET is:
A. a) They have short half-lives.
B. b) They are produced with a cyclotron.
C. c) They decay by positron emission.
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Before a PET/CT scan, the patient must remove any metal objects such as jewellery prior to the scan because:
A. a) Dense objects will show up on a CT scan.
B. b) They can be damaged during the scan.
C. c) They are a safety issue.
SPECT radiopharmaceuticals are used to diagnose diseases associated with:
A. Oncology
B. Neurology
C. Both A and B
Which of the following is a not a SPECT radioisotope:
A. Gallium-68
B. Indium-111
C. Iodine-123
How does technetium-99m decay?
A. Electron capture
B. Isomeric transformation
C. Alpha decay
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