C. Give the patient Tylenol 650mg P.O as ordered and assist the patient with guided imagery.
This patient's pain level is relatively low at a 2/10 and is being well managed with scheduled Tylenol. Guided imagery could help further reduce the patient's perception of pain without unnecessary opioid exposure. Options A, B, and D would likely provide more pain relief than is needed and increase risks of opioid dependence, misuse or overdose.