The practical nurse (PN) observes a male client grimacing and holding his head. The PN determines that the client is in pain. To validate this assessment with subjective data, which action should the PN implement?

A. Compare the client's current vital signs with vital signs taken earlier in the day: Vital signs can provide objective data but may not accurately reflect pain intensity or quality. They cannot replace the client’s subjective report, which is the most reliable indicator of pain. B. Ask the client to provide a detailed description about the quality of the pain: Obtaining the client’s description allows the PN to validate the presence, severity, and characteristics of pain. This subjective data guides appropriate interventions and ensures individualized pain management. C. Review the medication record and note when the client last received an analgesic: While reviewing medication timing is important for planning pain relief, it does not confirm whether the client is currently experiencing pain or its intensity. D. Consult with the charge nurse about the manifestations that the client is exhibiting: Consulting another nurse may be helpful for collaborative care, but first-hand assessment and obtaining the client’s subjective report are necessary before escalation.