Which finding indicates a male client taking risperidone is having an adverse effect?

Gynecomastia is indeed a significant finding indicating an adverse effect in a male client taking risperidone. This medication is an atypical antipsychotic that can lead to hormonal changes due to its pro-lactin effects. Specifically, risperidone can increase prolactin levels, which may result in breast tissue development in males. This phenomenon can occur due to the blockade of dopaminergic pathways that inhibit prolactin secretion. The presence of gynecomastia can lead to psychological distress for the patient and signal the need for medical evaluation and potential adjustment of medication.

Other potential side effects related to risperidone do not specifically indicate an adverse reaction and are either less common or unrelated to its primary pharmacological action. For example, ptosis primarily relates to eyelid muscle dysfunction, which can occur for various reasons, not explicitly tied to risperidone use. Gingival hyperplasia is often associated with medications like anticonvulsants rather than antipsychotics. Polycythemia, an increased red blood cell mass, can be due to other factors, including chronic hypoxia, rather than direct adverse effects of risperidone. Therefore, gynecomastia stands out as a notable and recognized adverse