The nurse administers two blood pressure (BP) medications to a patient and asks the certified nurse assistant (CNA) to obtain a BP reading in 30 minutes.The CNA states,"I just took his BP." What is the most appropriate response by the nurse?

A) "Take it again so we can be sure nothing else is wrong with him."
B) "I need to check the patient's response to the BP medications."
C) "If his BP drops too much, I'll need to discontinue one of the medications"
D) "If you just took his BP, then recheck it in 2 hours instead."

Many factors affect blood pressure including age,gender,family history,lifestyle,stress,and medications.In this item,the nurse has just administered BP medications to the patient.Many BP medications alter BP.The effect may be intended,as with antihypertensive medications,or unintended,such as a drop in BP when patients take pain medications.The nurse must evaluate the effectiveness of the BP medications and also unintended effects,such as too great a fall in BP.A nurse may contact the prescriber regarding BP medications,but she cannot discontinue them without an order.Two hours is too long to wait to evaluate medication effects,as the drugs will likely peak before that.