A patient with lower back pain is scheduled for myelography using metrizamide (a water-soluble contrast dye). After the test, the nurse should prioritize what action?

(A) Positioning the patient with the head of the bed elevated 45 degrees (B) Administering IV morphine sulfate to prevent headache (C) Limiting fluids for the next 12 hours (D) Helping the patient perform deep breathing and coughing exercisesAnswer Explanation: After myelography, the patient lies in bed with the head of the bed elevated 30 to 45 degrees. The patient is advised to remain in bed in the recommended position for 3 hours or as prescribed. Drinking liberal amounts of fluid for rehydration and replacement of CSF may decrease the incidence of postlumbar puncture headache. Deep breathing and coughing exercises are not normally necessary since there is no consequent risk of atelectasis.