Specimens requiring centrifugation are one of two categories: plasma or ____.

Your patient is an 80-year-old man. He was previously diagnosed by his physician with bradycardia. This means the patient has a history of:

A) slow heart rate. B) fast heart rate. C) slow breathing. D) fast breathing.

The prefix ____ means "between," while the prefix ____means "within."

A) pre-; post- B) endo-; exo- C) hyper-; hypo- D) inter-; intra-