A nurse is caring for a client who has ulcerative colitis and is receiving sulfasalazine. Which of the following findings requires immediate intervention?

A. Anorexia. Anorexia is a common side effect of sulfasalazine and is usually mild. It occurs due to the drug’s gastrointestinal effects but does not require immediate intervention. Managing symptoms with dietary modifications or taking the medication with food can help alleviate discomfort. B. Arthralgia. Joint pain (arthralgia) can develop as a side effect of sulfasalazine, sometimes due to a drug-induced lupus-like reaction. Although it can cause discomfort, it is not immediately life-threatening. Monitoring symptoms and adjusting treatment may help manage this condition. C. Nausea. Nausea frequently occurs with sulfasalazine use and is typically mild. It is often dose-dependent and can be managed by taking the medication with meals. While persistent nausea may require adjustments, it is not a medical emergency. D. Wheezing. Wheezing suggests a hypersensitivity reaction, which can lead to anaphylaxis, a life-threatening emergency. Sulfasalazine contains a sulfa component, which may trigger bronchospasm, angioedema, or respiratory distress. Immediate intervention, including discontinuing the drug and administering emergency treatment, is necessary.