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In the context of patient care, how should a nurse practioner assess pain in an individual who exhibits a non-expressive facial communication style, such as having a "poker face"?
1. Assume the patient is not in pain due to lack of facial expression
2. Rely on the faces scale for accurate pain assessment
3. Consider cultural differences that may discourage the expression of pain
4. Prioritize patients who display affective communication
5. Disregard the patient's self-reported pain intensity