The patient is admitted to the critical care unit with hemodynamic instability and an allergy to morphine.The nurse anticipates that the practitioner will order which medication for severe pain?

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Fentanyl is a synthetic opioid preferred for critically ill patients with hemodynamic instability or morphine allergy.Hydromorphone is a semisynthetic opioid that has an onset of action and a duration similar to those of morphine.It is more potent than morphine.Hydromorphone produces an inactive metabolite (ie,hydromorphone-3-glucuronide),making it the opioid of choice for use in patients with end-stage renal disease.Codeine has limited use in the management of severe pain.It is rarely used in critical care units.It provides analgesia for mild to moderate pain.It is usually compounded with a nonopioid.Methadone is a synthetic opioid with morphine-like properties but less sedation.It is longer acting than morphine and has a long half-life.This makes it difficult to titrate in the critical care patient.

The Patient Is Admitted to the Critical Care Unit with Hemodynamic