A nurse is assessing a client who is taking clozapine. For which of the following adverse effects should the nurse monitor and report to the provider?

Rationale: A. Sore throat: A sore throat can indicate agranulocytosis, a potentially life-threatening adverse effect of clozapine. Prompt monitoring of WBC counts and reporting symptoms such as fever or sore throat is essential to prevent serious infection. B. Tinnitus: Tinnitus is not a common or severe adverse effect of clozapine. While it may be bothersome, it does not require immediate reporting to the provider in the context of clozapine therapy. C. Rhinitis: Mild nasal congestion or rhinitis can occur with clozapine use but is generally not dangerous or indicative of a serious complication. Monitoring is routine, but urgent reporting is not required. D. Headache: Headaches are a common, nonspecific side effect and do not typically indicate a life-threatening reaction. Routine assessment and symptom management are appropriate.