Correct Answer: D

Rationale: The correct answer is 'Muscle weakness.' Hypokalemia is characterized by low potassium levels, which can lead to muscle weakness due to impaired muscle function. Choices A, B, and C are incorrect findings associated with other medical conditions and not typically expected in hypokalemia. Muscle stiffness is more commonly associated with conditions like tetany or muscle cramps, bradycardia is more commonly associated with issues like heart block or hypothyroidism, and hyperreflexia is more commonly seen in conditions like hyperthyroidism or spinal cord injuries.

Correct Answer: C

Rationale: Applying an orthotic to the client's foot is the appropriate intervention to prevent contractures in an immobile client. An orthotic helps maintain proper alignment and prevents the development of contractures by keeping the foot in the correct position. Choices A, B, and D are incorrect because a trochanter wedge, towel roll under the neck, and pillow under the knees are not specific interventions for preventing contractures in an immobile client.

Correct Answer: D

Rationale: The most relevant suggestion for minimizing stress in individuals with Alzheimer's disease is to maintain consistency in the environment, routine, and caregivers. This approach helps create a sense of familiarity and security for the individual, reducing stress and anxiety. Choice A is incorrect as it suggests allowing the client to go to bed multiple times during the day, which may disrupt their routine and lead to confusion. Choice B is incorrect as continuously testing cognitive functioning can be overwhelming and stressful for the individual. Choice C is also incorrect as providing reality orientation in cases of severe memory loss can cause frustration and confusion, ultimately increasing stress levels.

Correct Answer: A

Rationale: Hypokalemia is managed by administering potassium supplements to correct the low potassium levels in the body. Monitoring the ECG is essential because low potassium levels can lead to cardiac arrhythmias. Choice B is incorrect as restricting fluid intake and providing a high-sodium diet are not appropriate for managing hypokalemia. Choice C is incorrect because hypokalemia involves low potassium levels, not sodium levels, and insulin therapy does not directly address this issue. Choice D is incorrect as calcium supplements are not indicated for hypokalemia, and monitoring for hyperkalemia is not relevant in this case.

Correct Answer: B

Rationale: The nurse should clarify prescription B, Acetaminophen 650 mg PO BID, with the provider. When a patient is NPO and receiving enteral feedings through an NG tube, medications administered orally may be contraindicated due to the risk of aspiration. Therefore, Acetaminophen should be confirmed for safety in this situation. The other options (Metoprolol ER 50 mg via NG tube BID, Lisinopril 10 mg PO daily, Ondansetron 4 mg IV push PRN) are appropriate and do not need clarification in this scenario.