Answer: A."Meperidine is no longer recommended as a first line pain medication, due to its potential for serious toxic effects. Morphine would be the drug of choice for pain control and the patient would also require supplemental oxygen and fluids. Sickle cell crisis is very painful, due to the clogging of capillaries and lack of nutrients and oxygen to tissues. Review best practice methods of caring for a patient in sickle cell crisis which would include pain control with an effective narcotic like morphine, IV fluids and oxygen."