The nurse documents that a male client with schizophrenia is delusional. Which statement by the client confirms this assessment?

A. "The snakes on the wall are going to eat me" indicates a hallucination, specifically a visual hallucination. Hallucinations involve perceiving something that is not present, such as seeing or hearing things that others do not. This statement does not confirm delusions. B. Hearing voices instructing harm doesn't confirm delusions but auditory hallucinations. C. "The nurse at night is trying to poison me with pills" reflects a delusion, specifically a persecutory delusion. Delusions are false, fixed beliefs that are not based in reality and are resistant to reasoning or contradictory evidence. This statement indicates a belief that someone is attempting harm, which is characteristic of delusional thinking. D. Believing fire is burning the skin could suggest a hallucination involving sensations, not necessarily a delusion.