Final answer:
Acknowledge the accuracy in charting dose and time, then address the documentation of non-pharmaceutical measures with the new RN to improve their pain management charting practices.
Step-by-step explanation:
As the charge nurse supervising a new RN, the first action to take when discovering documentation deficits is to address the situation directly with the nurse. The RN has accurately charted the dose and time of medication administration, which should be acknowledged and commended. After giving this praise, it is crucial to discuss the importance of documenting non-pharmaceutical measures for comprehensive patient care. By providing guidance on the need for holistic documentation, the charge nurse helps the new RN to understand the complete scope of pain management and ensure that all aspects of care are recorded and communicated effectively.