Correct Answer: C

Rationale: Step-by-step rationale for why choice C is correct: 1. The lab value of K at 3.2 mEq/L indicates hypokalemia. 2. Digitalis can worsen hypokalemia and lead to toxicity. 3. Avoiding foods rich in potassium will prevent further lowering of potassium levels. 4. This intervention helps prevent potential digitalis toxicity in the client. Summary of why the other choices are incorrect: A. Stopping digitalis therapy abruptly can lead to rebound effects and worsen the condition. B. Trousseau's and Chvostek's signs are not relevant to the client's current lab values. D. While observing for digitalis toxicity is important, addressing the low potassium level is a more immediate concern in this scenario.

Correct Answer: C

Rationale: The correct answer is C: Break the task down into simple steps. This response is the best because it helps the patient by breaking down the task into manageable parts, making it less overwhelming and more achievable. By providing clear and simple steps, the patient can focus on one aspect at a time, reducing frustration and increasing the likelihood of successful completion. Choice A is incorrect because performing the task for the patient does not promote independence or skill development. Choice B is incorrect as it dismisses the patient's feelings of frustration without offering a solution. Choice D is incorrect because having another patient demonstrate may not address the specific needs and abilities of the recovering stroke patient.

Correct Answer: A

Rationale: The correct answer is A: Use parallel bars or a walker. Before a client with impaired physical mobility gets up, the nurse should provide assistive devices like parallel bars or a walker to ensure safe and supported ambulation. This helps prevent falls and promotes independence. Using incontinence pads (B) is not directly related to mobility. Applying an abdominal binder (C) is not necessary before the client gets up. Using a footboard (D) is more relevant for positioning in bed, not for assisting with ambulation.

Correct Answer: C

Rationale: The correct answer is C: Hypomagnesemia. 1. Hypertension and cardiac dysrhythmias can be exacerbated by low magnesium levels. 2. Magnesium plays a crucial role in maintaining normal heart rhythm and blood pressure. 3. Hypomagnesemia can lead to cardiac arrhythmias and worsen hypertension. 4. Metabolic acidosis (A) is not directly related to hypertension and dysrhythmias. 5. Hypernatremia (B) and hypercalcemia (D) are less likely to be associated with cardiac issues in this context. In summary, checking for hypomagnesemia is essential due to its direct impact on the client's hypertension and cardiac dysrhythmias.

Correct Answer: A

Rationale: The correct answer is A because maintaining consistency in the order of drawing different types of insulin into the syringe helps prevent medication errors. When mixing insulins, drawing them in the same sequence ensures the correct dose and prevents contamination. Explanation: A: Following the same order ensures accurate dosing and minimizes the risk of mixing up insulins. B: Shaking the vial can cause air bubbles which can affect the accuracy of the dose. C: Storing insulin in the freezer can damage the medication and alter its effectiveness. D: Cloudiness in intermediate-acting insulin is normal and does not indicate it should be discarded.