The Nurse Administered the Narcotic Meperidine, 50 Mg Orally (PO)

The nurse administered the narcotic meperidine, 50 mg orally (PO) at 1400 to a patient with nausea, vomiting, and pain rated as 9 on a 0-to-10 scale. At 1430, the patient stated that the medication was not working and requested to have intravenous (IV) morphine, which the provider had prescribed for severe pain. What is the nurse's best evaluation of this situation?

A) The patient needs to understand that it takes time for the medication to reduce pain.
B) Administering meperidine PO was not the best nursing intervention in this situation.
C) The provider should be notified if the patient's pain is not relieved in 2 hours.
D) Meperidine PO was the best intervention because morphine IV can cause drug addiction.