An Older Client Recovering from Surgery Is Prescribed IV Morphine

An older client recovering from surgery is prescribed IV morphine sulfate 2 to 6 mg every four hours prn for pain. What approach will the nurse take to manage this client's pain?

A) Begin by administering 2 mg IV every four hours as needed.
B) Administer 4 mg of morphine every time the client requests pain relief.
C) If the 2 mg dose is not effective within 15 minutes, administer another 2 mg.
D) Offer a 6 mg dose of morphine for reports of moderate to severe pain.