A nurse is caring for a client who is 1 day postoperative following a total hip arthroplasty and is receiving heparin subcutaneously. Which of the following adverse effects of the medication should the nurse report to the provider?

A. Anorexia: This is not a common or serious adverse effect of heparin. It is not usually a priority for reporting to the provider. B. Epistaxis: This is correct. Heparin is an anticoagulant, and one of the major risks associated with its use is bleeding. Epistaxis (nosebleeds) is a common sign of bleeding that could be a result of heparin therapy, and it should be reported to the provider promptly. C. Bradycardia: Bradycardia is not a common adverse effect of heparin. Heparin primarily affects clotting mechanisms, not heart rate. D. Weight gain: Weight gain is not a typical adverse effect of heparin. If the weight gain is significant or linked to fluid retention, it may need to be assessed, but it is not a typical reaction to heparin.