PET/CT BOARD EXAM QUESTIONS AND
ANSWERS (GRADED A+)
Which of the following radionuclides is not a positron emitter? - ANSWER-C-14
When a neutron deficient nucleus emits a positron? - ANSWER-atomic mass number is
unchanged
Which of the following has the shortest half life? - ANSWER-Rb-82
When F-18 FDG is transported across most cell membranes? - ANSWER-it is trapped
in the cell and it is not further metabolized
Which of the following will not affect the distribution of F-18 FDG on a PET image? -
ANSWER-Intense physical activity the day before imaging, Serum insulin level, Serum
glucose level, and bladder catheterization
Normal F-18 FDG distribution would show the least activity in the? - ANSWER-bone
All positron emitting isotopes are produced in a cyclotron? - ANSWER-false
F-18 FDG PET is not an important tool for? - ANSWER-detecting helicobacter pylori
Which of the following is true regarding F-18 FDG? - ANSWER-it is taken up by a
disease free myocardium
F-18 FDG PET images show a map of the ______ distribution in the body? - ANSWER-
glucose
What length of time should a lactating female who undergoes F-18 FDG PET scanning
wait before resuming breast feeding? - ANSWER-24 hr
Because of the relativity high energy of the photons detected in PET imaging,
attenuation correction does not need to be performed? - ANSWER-false
What part of a PET scanner quality control regimen is necessary for the computation of
attenuation factors? - ANSWER-blank scan
Which of the following describes random coincidence? - ANSWER-the simultaneous
detection of photons originating from different positrons
Scintillation crystals for PET scanners are not made of? - ANSWER-lead sulfate
ANSWERS (GRADED A+)
Which of the following radionuclides is not a positron emitter? - ANSWER-C-14
When a neutron deficient nucleus emits a positron? - ANSWER-atomic mass number is
unchanged
Which of the following has the shortest half life? - ANSWER-Rb-82
When F-18 FDG is transported across most cell membranes? - ANSWER-it is trapped
in the cell and it is not further metabolized
Which of the following will not affect the distribution of F-18 FDG on a PET image? -
ANSWER-Intense physical activity the day before imaging, Serum insulin level, Serum
glucose level, and bladder catheterization
Normal F-18 FDG distribution would show the least activity in the? - ANSWER-bone
All positron emitting isotopes are produced in a cyclotron? - ANSWER-false
F-18 FDG PET is not an important tool for? - ANSWER-detecting helicobacter pylori
Which of the following is true regarding F-18 FDG? - ANSWER-it is taken up by a
disease free myocardium
F-18 FDG PET images show a map of the ______ distribution in the body? - ANSWER-
glucose
What length of time should a lactating female who undergoes F-18 FDG PET scanning
wait before resuming breast feeding? - ANSWER-24 hr
Because of the relativity high energy of the photons detected in PET imaging,
attenuation correction does not need to be performed? - ANSWER-false
What part of a PET scanner quality control regimen is necessary for the computation of
attenuation factors? - ANSWER-blank scan
Which of the following describes random coincidence? - ANSWER-the simultaneous
detection of photons originating from different positrons
Scintillation crystals for PET scanners are not made of? - ANSWER-lead sulfate
