A nurse is caring for a client who has schizophrenia. Which of the following findings should the nurse identify as a comorbidity to this condition?

A. Cancer is not a typical comorbidity of schizophrenia. While clients may have higher overall mortality due to lifestyle factors such as smoking or reduced access to healthcare, cancer is not directly associated with the disorder. B. Alzheimer’s disease is a neurodegenerative condition linked to aging and genetic factors. Although cognitive deficits occur in schizophrenia, Alzheimer’s disease is not a common comorbidity. C. Diabetes mellitus is a well-established comorbidity in schizophrenia. The increased risk is due to multiple factors, including metabolic side effects of second-generation antipsychotic medications like olanzapine and clozapine, poor diet, sedentary lifestyle, and higher rates of smoking. Monitoring glucose, lipid levels, and weight, as well as providing education on nutrition and exercise, is essential in managing this comorbidity. D. Osteoarthritis is related to joint degeneration from aging or mechanical stress. While schizophrenia may lead to reduced activity, osteoarthritis is not directly linked to the psychiatric disorder and is not considered a characteristic comorbidity.