The anesthesiologist is preparing to anesthetize a 30-year-old patient for elective surgery and plans to use inhalational anesthetic agents. Which of the following factors will make the patient more sensitive to these agents?

The anesthesiologist is preparing to anesthetize a 30-year-old patient for elective surgery and plans to use inhalational anesthetic agents. Which of the following factors will make the patient more sensitive to these agents?

A 25-year-old man with multiple sexual partners begins to have flulike symptoms. He visits his primary care physician who recommends an HIV screening test based on his history. He is found to have an HIV infection and begins a drug regimen. Which of the following works by blocking the cleavage of the HIV polyproteins?

A 58-year-old woman with end-stage cervical cancer has undergone surgery, chemotherapy, and radiation therapy. She has chronic pelvic pain and is being treated with a fentanyl patch. Because of continued intractable pain, she places three patches on at the same time. She is found dead 6 h later by her caretaker. What is the most likely explanation for her death?

A 27-year-old man presents to the urgent care clinic with multiple painful ulcers on the shaft of his penis. Some strains of the causative virus are resistant because of a mutated thymidine kinase enzyme. Which of the following antivirals may be less effective in treating this man's infection if his strain of virus has a mutated thymidine kinase?

A 45-year-old man with an elevated bleeding time is scheduled to undergo an elective hernia repair in approximately 12 h. He is given vitamin K orally and the bleeding time is still elevated. What is the most likely explanation for this finding?