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: Anorexia, or loss of appetite, is not a typical adverse effect directly associated with heparin use. While it may occur due to general postoperative factors, it is not an urgent or life-threatening reaction that necessitates immediate reporting related to anticoagulant therapy. B. Epistaxis: Epistaxis, or nosebleed, is a sign of potential bleeding complications, which is a major adverse effect of heparin. Because heparin inhibits clot formation, any evidence of spontaneous bleeding must be reported immediately to the provider to assess for potential heparin-induced bleeding disorders. C. Weight gain: Weight gain could suggest fluid retention, but it is not a typical adverse effect of heparin. While postoperative clients should be monitored for signs of fluid imbalance, sudden bleeding signs like epistaxis are far more critical to recognize and report when administering anticoagulants. D. Bradycardia: Bradycardia, or slow heart rate, is not commonly linked to heparin therapy. While abnormal heart rhythms may occur postoperatively for other reasons, they are not typically associated with bleeding risks from heparin and thus do not require urgent reporting specific to heparin use.