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in Physics by (95.2k points)

In nuclear medicine: 

a. Radio pharmaceuticals with a shorter half-life result in a lower patient dose 

b. When preparing radio pharmaceuticals, syringes with a heavy metal sleeve block almost all radiation to the fingers 

c. Breast-feeding should be avoided for 72 h following administration of a radio nuclide 

d. An ARSAC certificate is valid for 5 years 

e. The dose to the patient is directly proportional to the number of images taken

1 Answer

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Best answer

a. True. The dose to an organ increases in proportion to the following: 

i. The effective half-life 

ii. The fraction taken up by the organ 

iii. The activity administered to the patient 

iv. The energy of alpha and beta radiation emitted. 

b. False. 

c. False. Breast-feeding should be avoided for 24 h. 

d. True. 

e. False. The number of images taken is independent of the dose to the patient in nuclear medicine examination.

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