which response by the nurse best explains the purpose of ranitidine zantac for a patient admitted with bleeding esophageal varices
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NCLEX-RN

NCLEX RN Exam Questions

1. Which response by the nurse best explains the purpose of ranitidine (Zantac) for a patient admitted with bleeding esophageal varices?

Correct answer: C

Rationale: The correct answer is: 'The medication will prevent irritation of the enlarged veins.' Esophageal varices are dilated submucosal veins. The therapeutic action of H2-receptor blockers in patients with esophageal varices is to prevent irritation and bleeding from the varices caused by reflux of acidic gastric contents. While ranitidine can decrease the risk of peptic ulcers, reduce nausea, and help prevent aspiration pneumonia, the primary purpose of H2-receptor blockade in this patient is to prevent irritation and bleeding from the varices, not the other listed effects.

2. After assessing Mr. B, what is the initial action of the nurse?

Correct answer: A

Rationale: The first action the nurse should take after assessing Mr. B is to administer oxygen and assist him to sit in the semi-Fowler's position. Administering oxygen helps improve tissue oxygenation, while sitting up in a semi-Fowler's position aids in better breathing and secretion clearance. Placing the client in a negative-pressure room is not the immediate priority unless isolation is needed. Performing a bronchoscopy or contacting the physician for antifungal medications is not the initial step in managing a client with suspected pneumonia.

3. Application - The nurse is caring for a patient who has the following labs: Creatinine 2.5mg/dL, WBC 11,000 cells/mL, and Hemoglobin of 12 g/dL. Based on this information, which of these orders would the nurse question?

Correct answer: B

Rationale: The correct answer is to question the order for a CT of the spine with contrast. The patient's elevated creatinine level of 2.5mg/dL indicates impaired kidney function. Contrast agents are nephrotoxic and can further compromise kidney function in patients with existing nephropathy. Therefore, it is crucial to avoid contrast-enhanced imaging studies in patients with impaired renal function. Choice A: Administering 30 Units of Lantus Daily is not contraindicated based on the provided lab values. Choice C: Ordering an X-ray of the abdomen and chest is not contraindicated based on the provided lab values. Choice D: Administering heparin subcutaneously at 5,000 Units every 12 hours is not contraindicated based on the provided lab values.

4. Which response would best assist the chemically impaired client in dealing with issues of guilt?

Correct answer: B

Rationale: The correct response is, 'What have you done that you feel most guilty about and what steps can you begin to take to help you lessen this guilt?' This response encourages the client to reflect on their actions, identify sources of guilt, and develop a plan to address and reduce these feelings constructively. Choice A is incorrect as it dismisses the client's guilt as typical, potentially invalidating their emotions. Choice C is incorrect as it suggests avoiding guilty feelings by turning to substance use, which is counterproductive. Choice D is incorrect as it focuses on the negative consequences of the client's actions without offering a constructive way to address and alleviate guilt.

5. A patient has been diagnosed with acute gastritis in a clinic. Which of the following medications would be contraindicated for this patient?

Correct answer: A

Rationale: Naproxen sodium is a nonsteroidal anti-inflammatory drug that can cause inflammation of the upper GI tract. For this reason, it is contraindicated in a patient with gastritis. Gastritis involves inflammation of the stomach lining, and medications like Naproxen can exacerbate this condition. Calcium carbonate is an antacid that can help neutralize stomach acid and may actually provide relief for gastritis symptoms. Clarithromycin is an antibiotic used to treat H. pylori infection, a common cause of gastritis. Furosemide is a loop diuretic used to treat conditions like edema and hypertension, not directly contraindicated in gastritis.

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