Nursing Elites

1. Potassium-sparing diuretics primarily affect which part of the kidney?

• A. Proximal convoluted tubule
• B. Loop of Henle
• C. Collecting duct
• D. Distal convoluted tubule

Correct answer: D

Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.

2. A client has a prescription for furosemide. Which of the following instructions should the nurse include?

• A. Take furosemide in the morning.
• B. Eat a diet high in potassium.
• C. Avoid foods that are high in magnesium.
• D. Limit your fluid intake to 1 liter per day.

Correct answer: B

Rationale: The correct answer is to 'Eat a diet high in potassium.' Furosemide is a loop diuretic that can cause hypokalemia (low potassium levels). Instructing the client to eat a diet high in potassium can help counteract the potassium-wasting effect of furosemide and prevent hypokalemia. Choice A is incorrect because furosemide can be taken at different times of the day based on individual needs. Choice C is incorrect as furosemide does not directly interact with magnesium levels. Choice D is incorrect because while fluid intake may need to be monitored, a specific limit of 1 liter per day is not a general instruction for all clients taking furosemide.

3. A patient with hypertension is taking an ACE inhibitor to lower blood pressure. What should the nurse advise the patient to avoid in their diet?

• A. Vinegar
• B. Apples
• C. Salt substitutes
• D. Tomatoes

Correct answer: C

Rationale: Patients taking ACE inhibitors should avoid salt substitutes as they often contain potassium, which can lead to hyperkalemia. Hyperkalemia is an elevated level of potassium in the blood that can be dangerous, especially for patients on ACE inhibitors. Vinegar, apples, and tomatoes do not pose a risk for patients taking ACE inhibitors. Therefore, the nurse should advise the patient to avoid salt substitutes to prevent potential complications.

4. A client presents in the Emergency Department with chest pain. Which of the following conditions is least likely to cause chest pain?

• A. Arthritis
• B. Peptic ulcer disease
• C. Myocardial infarction
• D. Gastric reflux

Correct answer: A

Rationale: Arthritis is a condition primarily affecting the joints and is not known to cause chest pain. Peptic ulcer disease, myocardial infarction, and gastric reflux are conditions that can present with chest pain due to various reasons such as inflammation, ischemia, or reflux of stomach acid into the esophagus, respectively.

5. A client has been prescribed a new oral hypoglycemic agent for diabetes. Which of the following statements by the client indicates a need for further teaching?

• A. I will take this medication with my evening snack.
• B. I will monitor my blood sugar levels before each meal.
• C. I will take this medication as soon as I wake up.
• D. I will follow my exercise plan as usual.

Correct answer: A

Rationale: Taking an oral hypoglycemic agent with an evening snack may lead to hypoglycemia during the night. It is important to follow the prescribed timing for medication administration to maintain blood sugar levels within the target range. The medication is usually taken before meals to help control postprandial blood glucose levels effectively. Choice B is correct as monitoring blood sugar levels before each meal is a good practice. Choice C is incorrect as taking the medication upon waking up may align with certain oral hypoglycemic agents' dosing schedules. Choice D is also correct as regular exercise is an important part of managing diabetes.

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