Final answer:
The nurse would use the Nursing Interventions Classification (NIC) (option 2) to document the visual analogue scale (VAS) scores for pain assessment in the client's electronic health record (EHR).
Step-by-step explanation:
The nurse would use Nursing Interventions Classification (NIC) to enter the visual analogue scores in the client's electronic health record (EHR). NIC is a comprehensive, standardized classification of interventions that nurses perform. It is used for documentation, communication, and research across healthcare settings and serves to ensure that care is consistent and measurable.
The visual analogue scale (VAS) is a tool that helps measure a patient's pain level, wherein a patient rates their pain on a continuum (often 0 to 10). Oxycodone, a potent opioid, is prescribed frequently to manage moderate to severe pain conditions. Proper assessment and recording using NIC support effective pain management and are key components of patient care.