a. False. This would result in high blood pool activity, which may reduce uptake in the target organ.
b. True. The half-life should ideally be a few hours, roughly equal to the time from injection to scanning.
c. True. Decay should be to a stable daughter in order to minimize the dose to the patient.
d. False. A radionuclide should have a high specific activity, i.e. high activity per unit volume.
e. False. Beta particles act as secondary electrons and *** an unnecessary dose in patients.
