A client with metastatic cancer reports a pain level of 10 on a 0 to 10 scale. Twenty minutes after the nurse administers an IV analgesic, the client states, "No pain relief yet." Which intervention is most important for the nurse to include in this client's plan of care?

Choice A reason: Replacing patches is important but not as immediately effective as managing pain on a continuous basis.Choice B reason:The correct answer is b) because administering analgesics on a fixed and continuous schedule helps manage chronic pain more effectively than as-needed dosing.Choice C reason: Monitoring for breakthrough pain is important but does not address the need for continuous pain management.Choice D reason: Frequent evaluation is essential but should be part of a broader pain management strategy.