The team leader is reviewing the pain management plan for Mr. U. He is having significant pain related to the cancer and the pulmonary resection. Which option would be the best for Mr. U?

The correct answer is B because Mr. U is experiencing significant pain related to cancer and pulmonary resection, which typically requires continuous pain management. Around-the-clock fixed doses of opioid analgesics provide consistent pain relief and can be adjusted based on his pain levels. This approach ensures adequate pain control without the need for Mr. U to wait until the pain becomes severe before asking for medication. Option A may lead to undertreatment of pain. Option C delays effective pain relief for Mr. U who is already experiencing significant pain. Option D is incorrect as opioids can be safely administered with proper monitoring, even in patients at high risk for respiratory distress.