Nursing Elites

1. Which of the following diuretics inhibits sodium reabsorption in the kidneys while sparing K+ and hydrogen ions?

• A. Spironolactone
• B. Furosemide
• C. Hydrochlorothiazide
• D. Bumetanide

Correct answer: A

Rationale: Spironolactone is the correct answer as it is classified as a potassium-sparing diuretic. It works by inhibiting sodium reabsorption in the kidneys while promoting the retention of potassium and hydrogen ions. This mechanism of action helps in reducing fluid retention without causing excessive loss of potassium, which is a common side effect of other diuretics. Furosemide (choice B), Hydrochlorothiazide (choice C), and Bumetanide (choice D) are not correct as they are not potassium-sparing diuretics. Furosemide and Bumetanide are loop diuretics that inhibit sodium, potassium, and chloride reabsorption in the loop of Henle. Hydrochlorothiazide is a thiazide diuretic that inhibits sodium and chloride reabsorption in the distal convoluted tubule, leading to potassium loss.

2. A client with Hodgkin's disease is receiving Cyclophosphamide IV. Which medication should be administered concurrently to prevent an adverse effect of Cyclophosphamide?

• A. Uroprotectant agent, such as mesna
• B. Opioid, such as morphine
• C. Loop diuretic, such as furosemide
• D. H1 receptor antagonist, such as diphenhydramine

Correct answer: A

Rationale: Mesna, an uroprotectant agent, is administered with nitrogen mustard chemotherapy drugs like Cyclophosphamide to prevent hemorrhagic cystitis, a common adverse effect. Mesna works by binding to and inactivating the toxic metabolites of Cyclophosphamide in the bladder, thereby reducing the risk of bladder toxicity.

3. A client has a new prescription for Verapamil. Which of the following instructions should the nurse include?

• A. Take this medication at bedtime.
• B. Monitor for signs of hyperglycemia.
• C. Avoid drinking grapefruit juice.
• D. Increase your intake of potassium-rich foods.

Correct answer: C

Rationale: The correct answer is to instruct the client to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of Verapamil, leading to increased blood levels of the medication, which can potentiate its effects, potentially causing adverse reactions like hypotension and bradycardia. Choices A, B, and D are incorrect. Taking Verapamil at bedtime is not a specific instruction related to its metabolism or side effects. Monitoring for signs of hyperglycemia is not directly related to Verapamil use. Increasing potassium-rich foods intake is not necessary with Verapamil and could potentially lead to hyperkalemia in some cases.

4. What is an expected outcome for Lithium use in patients with bipolar disorder?

• A. Reduced risk of myocardial infarction
• B. Reduced risk of GI ulcers
• C. Decrease in respiratory distress
• D. Decreased incidence of acute manic episodes

Correct answer: D

Rationale: The correct answer is D: Decreased incidence of acute manic episodes. Lithium is commonly used to treat bipolar disorder by helping to stabilize mood and reduce the intensity and frequency of manic episodes. This leads to better overall management of the disorder. Choices A, B, and C are incorrect because lithium is not known to reduce the risk of myocardial infarction, GI ulcers, or respiratory distress in patients with bipolar disorder.

5. A client with peptic ulcer disease is being taught about managing the condition. Which of the following statements indicates an understanding of the teaching?

• A. I should eat small, frequent meals that are low in fiber.
• B. I will limit my intake of caffeine-containing beverages.
• C. I should take NSAIDs to relieve my pain.
• D. I will drink milk before bedtime to decrease acid production.

Correct answer: B

Rationale: The correct answer is B: 'I will limit my intake of caffeine-containing beverages.' Limiting intake of caffeine-containing beverages is important for managing peptic ulcer disease as caffeine can stimulate gastric acid secretion, which may worsen the condition. It is advisable to choose decaffeinated beverages and avoid caffeinated drinks to help reduce the risk of aggravating the ulcer. Choices A, C, and D are incorrect. Choice A suggests eating small, frequent meals low in fiber, which is not ideal for managing peptic ulcer disease. Choice C of taking NSAIDs is contraindicated as NSAIDs can worsen peptic ulcers. Choice D of drinking milk before bedtime to decrease acid production is a common misconception; while milk may temporarily neutralize stomach acid, it can stimulate more acid production later, making the condition worse.

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