Can my 12 year old son take 10mg melatonin. As 5mg as not been working on him.

Pearl richards, 69 years of age, is a female patient who is in the operating room for a repair of an abdominal aortic aneurysm. the patient has a history of hypertension controlled with medications, osteoporosis, chronic obstructive pulmonary disease, and has smoked two packs of cigarettes per day for 40 years. qn1. what nursing interventions are instituted to reduce the surgical risk factors related to the patient’s age. qn2. explain the role of the nurse in providing patient safety measures during the introspective period.