Mr. Clark is receiving chemotherapy for lung cancer, and the chemotherapeutic agent is causing severe nausea and vomiting. The physician has ordered 5mg Compazine IM. You have Compazine in a 10 mL multidose vial that provides the drug as 5 mg/mL. How many mL of Compazine will you administer to Mr. Clark? 

A. 0.5 mL
B. 1 mL
C. 1.5 mL
D. 2 mL
E. 2.5 mL

B. 1 mL
The solution strength in the vial is 5 mg per mL, and you need to administer exactly 5 mg, so you will inject 1 mL.