A nurse is providing care for a client who is scheduled for electroconvulsive therapy. Which of the following conditions should the nurse identify as an increased risk for complications?

Choice A reason: A subdural hematoma increases complication risk during electroconvulsive therapy (ECT) due to elevated intracranial pressure. ECT-induced seizures can worsen bleeding or cause herniation, posing significant neurological risks. This condition requires careful evaluation, making it the critical risk factor for complications. Choice B reason: Hyperthyroidism may increase heart rate or metabolic demand but is not a primary risk for ECT complications. With proper management, it poses minimal risk compared to intracranial issues, so this is not the most concerning condition, making it incorrect. Choice C reason: Renal calculi do not directly impact ECT safety, as they are unrelated to neurological or cardiovascular risks during seizures. This condition is manageable and not a significant complication risk, so it is incorrect for this scenario. Choice D reason: Diabetes mellitus requires monitoring during ECT due to fasting or medication effects, but it is not a primary risk for complications. With proper glucose management, risks are minimal, so this is incorrect compared to a subdural hematoma’s impact.