A nurse is reviewing a client's medical record before administering acetaminophen 650 mg PO every 6 hr. Which of the following findings indicates a need for the nurse to notify the provider?

A. Hypothyroidism: Hypothyroidism does not directly affect acetaminophen metabolism or increase risk of toxicity. It does not require notifying the provider before administration. B. BP 92/60 mm Hg: Mild hypotension is not a contraindication for acetaminophen use, as the medication does not significantly impact blood pressure. Monitoring is sufficient. C. History of alcohol use disorder: Chronic alcohol use increases the risk of liver damage, and acetaminophen is hepatotoxic in high doses or with underlying liver disease. The provider should be notified to assess the safety of standard dosing or consider alternatives. D. Recurrent headaches: Recurrent headaches are likely the indication for acetaminophen therapy and do not contraindicate its use. No additional notification is required for this reason.