Why is it in the patient's best interest to use a radioisotope with a short half-life for a PET scan?

A)to completely eliminate background radiation B)so the doctors can get an accurate scan
C)so the radiation leaves the body quickly
D)so it emits stronger gamma rays

Question

Why is it in the patient's best interest to use a radioisotope with a short half-life for a PET scan?

 A)to completely eliminate background radiation  B)so the doctors can get an accurate scan 
 C)so the radiation leaves the body quickly  
D)so it emits stronger gamma rays

anonymous · Answer

I would go with C because if radiologists used something with a long half life it could stay in your body and damage your cells

anonymous · Answer

Need more help or is that good?

anonymous · Answer

its good