One week after taking a 4-hour flight home from a hunting trip, an 18-year-old man presents with hearing loss and tinnitus. on examination, his external auditory canal and tympanic membranes appear normal. results of a rinne test are normal bilaterally, and a weber test is localized to the right side. an audiogram demonstrates a moderate high-frequency sensorineural hearing loss in the left ear. what is the most likely cause of the hearing change?

Mr. will, a 67-year-old patient, is postoperative day 2 after a coronary artery bypass graft operation to revascularize his coronary arteries that were significantly blocked. he has a midline incision of his chest and a 7-inch incision on the inner aspect of his right thigh where a saphenous vein graft was harvested and used to vascularize the blocked coronary artery. the surgeon ordered oxycodone 5 mg every 4 hours prn for moderate pain and oxycodone 10 mg every 4 hours prn for severe pain. a. considering the patient's age, what medication administration considerations should the nurse incorporate into the pain management plan and why? b. what measures should the nurse provide the patient to prevent adverse effects of analgesic agents from occurring? c. what nonpharmacologic pain management methods should the nurse teach to mr. will to assist with pain management?