Prior to Administering a Newly Prescribed Order for Metoprolol (Toprol),the

Prior to administering a newly prescribed order for metoprolol (Toprol) ,the nurse reviews the client's medications and decides to the order for which reason?
Select all that apply.

A) The client is also prescribed a calcium channel blocker.
B) The client is already taking an antihypertensive medication.
C) The client is using cimetidine.
D) The client is taking oral contraceptives.
E) The client is taking aspirin.