Final answer:
The best response for a nurse to provide to a patient with paranoid schizophrenia who believes she is being poisoned is to engage with the patient by asking her to explain her thoughts, without reinforcing the delusion. A non-threatening and understanding approach promotes a trusting environment for the patient's care.
Step-by-step explanation:
The most appropriate response for the nurse to provide to this patient, who exhibits symptoms of paranoid schizophrenia and believes her food is poisoned, would be to address her concerns sensitively while affirming the safety measures in place. The nurse should acknowledge the patient's fear without reinforcing the delusion. The best option among the given responses is:
b. You're not being poisoned. Why do you think someone is trying to poison you?
This response invites the patient to explain her thoughts and concerns and opens a dialogue without directly challenging her delusion. It allows the nurse to engage with the patient in a manner that is non-threatening and promotes trust. It is also important for the nurse to ensure that communication with the patient remains professional and therapeutic, to foster a safe environment where the patient feels understood and cared for.