A client presents agitated and diaphoretic with a thready pulse, dry skin, and mucous membranes. The client has poor skin turgor and dark yellow urine with decreased output. Laboratory results show BUN 30 mg/dL, HCT 60 percent, Sodium 154 mEq/L, and Potassium 5.1 mEq/L. Vital signs are Pulse 112, Blood Pressure 148/92, Temperature 102.2 degrees Fahrenheit, and Respirations 16. What does the nurse anticipate the health care provider will prescribe?

Choice A rationale Codeine is an opioid analgesic typically used for pain management or cough suppression. It is not indicated for this client, as their presentation suggests a severe reaction to psychotropic medications or a withdrawal syndrome. Administering an opioid could complicate the clinical picture by potentially causing respiratory depression or altering the mental status further without addressing the underlying physiological instability or sympathetic nervous system hyperactivity seen here. Choice B rationale The client displays symptoms consistent with severe agitation and autonomic instability. Lorazepam, a benzodiazepine, is the gold standard for managing agitation and preventing seizures in conditions like alcohol withdrawal or sedative-hypnotic discontinuation. It works by enhancing GABA-mediated inhibition in the central nervous system, which helps stabilize vital signs. The client's elevated sodium (normal 135 to 145 mEq/L) and BUN (normal 10 to 20 mg/dL) indicate dehydration requiring benzodiazepine-facilitated sedation. Choice C rationale Olanzapine is an atypical antipsychotic used for schizophrenia or bipolar disorder. However, in an acutely agitated client with autonomic instability (fever 102.2 degrees Fahrenheit and tachycardia), antipsychotics are generally avoided. This is because they can lower the seizure threshold or worsen potential Neuroleptic Malignant Syndrome, which this client's high temperature and agitation might suggest. Antipsychotics do not address the primary fluid and electrolyte imbalances or the immediate need for neuro-sedation. Choice D rationale Phenelzine is a monoamine oxidase inhibitor (MAOI) used for treatment-resistant depression. It is highly contraindicated in an acutely agitated client with autonomic dysfunction. Phenelzine can precipitate a hypertensive crisis or serotonin syndrome if it interacts with other substances. The client's current blood pressure of 148/92 and tachycardia of 112 beats per minute indicate a hypermetabolic state that would be dangerously exacerbated by the sympathomimetic effects of an MAOI medication.