A patient is diagnosed with type 2 diabetes mellitus and schizophrenia. The nurse will closely monitor the blood receives which medication for the treatment of schizophrenia?

Choice A rationale: Patient-controlled analgesia (PCA) devices provide a controlled dose of medication when the patient presses the button. However, the onset of action for morphine is typically faster than 10 minutes.
Choice B rationale: PCA devices often have a lock-out period to prevent patients from administering too many doses too quickly and risking overdose.
Choice C rationale: Patient-controlled analgesia is designed for the patient to self- administer the medication. Allowing family members to press the button may lead to inaccurate dosing.
Choice D rationale: Morphine should be administered as needed, not preemptively.
Administering the medication 10 minutes before physical therapy could result in excessive sedation.

Choice A rationale: Managing dry-mouth symptoms is not the greatest teaching priority for a patient prescribed varenicline.
Choice B rationale: Increasing fiber in the diet to reduce constipation is not the greatest teaching priority for a patient prescribed varenicline.
Choice C rationale: The greatest teaching priority for a patient prescribed varenicline is to report thoughts of self-harm. Varenicline is a medication used for smoking cessation, and there have been reports of neuropsychiatric symptoms, including suicidal ideation.
Choice D rationale: Teaching about the decreased pleasurable effect of nicotine is important but not the greatest priority compared to ensuring the patient's safety.