A client has been prescribed vasopressin for the treatment of diabetes insipidus. What is the expected pharmacological action of this medication?

Correct Answer: C

Rationale: The correct answer is C: To increase reabsorption of water in the renal tubules. Vasopressin mimics the action of antidiuretic hormone (ADH) by increasing the reabsorption of water in the renal tubules. This leads to decreased urine output, helping to manage symptoms of diabetes insipidus, which is characterized by excessive thirst and urination. Choices A, B, and D are incorrect. Vasopressin does not stimulate the pancreas to secrete insulin, slow the absorption of glucose in the intestine, or directly increase blood pressure.

Correct Answer: A

Rationale: The correct answer is A: 'Notify your provider if you experience restlessness or spasms of the face or neck.' Metoclopramide can cause extrapyramidal symptoms, such as restlessness and muscle spasms, particularly of the face and neck. These symptoms should be reported to the provider immediately. Choice B is incorrect because metoclopramide is not meant to be taken only when feeling nauseous; it is used to treat nausea and vomiting. Choice C is incorrect because it is important to stay hydrated while taking metoclopramide. Choice D is incorrect because metoclopramide is usually taken before meals to improve gastric emptying, not necessarily on an empty stomach.

Correct Answer: B

Rationale: The correct answer is B: Hypokalemia. Furosemide is a loop diuretic that can lead to potassium loss through urine, causing hypokalemia. Hyperkalemia (choice A) is not a side effect of furosemide. Hyponatremia (choice C) and hypernatremia (choice D) are related to sodium levels rather than potassium, and they are not typically associated with furosemide use.

Correct Answer: C

Rationale: The correct answer is to advise the client to avoid potassium supplements. Spironolactone is a potassium-sparing diuretic, meaning it helps the body retain potassium. Adding potassium supplements on top of this medication can lead to hyperkalemia, an elevated level of potassium in the blood, which can be dangerous. Choices A, B, and D are incorrect because increasing potassium-rich foods, limiting sodium intake, and increasing protein intake are not specifically related to the dietary considerations when taking spironolactone.

Correct Answer: C

Rationale: The correct answer is C: Tremors. Lithium toxicity can present with symptoms such as tremors, nausea, and blurred vision. Tremors are a common early sign of lithium toxicity and should be monitored closely. While nausea and vomiting can also occur with lithium toxicity, tremors are more specific to lithium toxicity. Increased urination is not typically associated with lithium toxicity, and blurred vision is less common compared to tremors in this context.