Bremsstrahlung X-rays are produced when the incoming electron __________.

Adding dectector rings to a PET camera could significantly reduce imaging time.  Why don’t all PET cameras have detectors that could scan the whole patient at once?

Which of the following lipids is essential for membrane fluidity and as a precursor for bile acids and hormones?

The use of low-dose CT scan in place of a conventional PET transmission scan _________.

__________ is hypotension plus tachycardia.  Select the best answer.

An 82 year old man has a 30-year history of alcoholism. He visits his physician because of swelling in his abdomen. An increase in which of the following is most likely the cause of the ascites?

Immediate phosphorylation of glucose by __________ prevents diffusion out of the cell.  

What is the approximate maximum percentage of single events that are converted into a true annihilation event?

A deficiency of which of the following is most likely to cause scurvy in humans?

__________ is the measured x-ray photon information.