A patient is experiencing moderate to severe pain. Which medication from the list below would the nurse anticipate the doctor ordering based on the pain level?

A. Acetaminophen: Acetaminophen is an over-the-counter analgesic suitable for mild pain. It is not potent enough to manage moderate to severe pain effectively, especially when rapid or strong relief is needed. B. Morphine: Morphine is a strong opioid analgesic used for moderate to severe pain. It acts on central opioid receptors to provide potent pain relief and is appropriate when non-opioid medications are insufficient. C. Allopurinol: Allopurinol is used to prevent gout attacks by lowering uric acid levels. It has no analgesic effect for acute pain management and is not indicated for immediate pain relief. D. Toradol: Toradol (ketorolac) is a nonsteroidal anti-inflammatory drug (NSAID) effective for short-term moderate pain. However, it is less potent than morphine for severe pain and is limited by duration of use and risk of bleeding or renal issues.