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. A 28-year-old male has been found wandering around in a confusing pattern. The male is sweaty and pale. Which of the following tests is most likely to be performed first?

Correct answer: A

Rationale: In a 28-year-old male presenting with confusion, sweating, and pallor, the most likely cause is hypoglycemia, especially with no mention of trauma or infection. Therefore, the initial test to be performed should be a blood sugar check to rule out low blood sugar levels. Checking blood sugar levels is crucial in such a scenario as hypoglycemia can lead to altered mental status. A CT scan (choice B) is not typically the initial test for altered mental status without any focal neurological signs or head trauma. Blood cultures (choice C) are more relevant in cases suspected of infection, which is not a primary concern in this scenario. Arterial blood gases (choice D) may be considered later if there are concerns about respiratory status or acid-base disturbances, but in this case, checking the blood sugar level is the most immediate and appropriate action.

3. What is the likely cause of pericarditis in a young patient?

Correct answer: D

Rationale: In younger patients, pericarditis is typically caused by an infection commonly triggered by viruses like the Coxsackie virus, streptococcus, staphylococcus, or Haemophilus influenzae. Infectious processes are the leading cause of pericarditis in younger individuals. Heart failure, Acute MI, and Hypertension are not common causes of pericarditis in young patients. In older adults, acute myocardial infarction (MI) is a more common cause of pericarditis.

4. A patient's nursing diagnosis is Insomnia. The desired outcome is: "Patient will sleep for a minimum of 5 hours nightly by October 31."? On November 1, a review of the sleep data shows the patient sleeps an average of 4 hours nightly and takes a 2-hour afternoon nap. What is the nurse's next action?

Correct answer: D

Rationale: The correct action for the nurse in this scenario is to revise the target date for outcome attainment and reevaluate interventions. The initial desired outcome was for the patient to sleep for a minimum of 5 hours nightly by October 31. Since the patient is currently sleeping an average of 4 hours nightly and taking a 2-hour afternoon nap, the goal has not been achieved. By extending the time frame for attaining the outcome, the patient may have more time to progress towards the desired sleep duration. Additionally, examining interventions is crucial to identify any changes or adjustments that may be necessary to help the patient achieve the desired outcome. Continuing the current plan without changes is not appropriate as the goal has not been met. Removing the nursing diagnosis from the plan of care should only be considered when the problem is resolved. Writing a new nursing diagnosis is not needed as the current diagnosis of Insomnia still accurately reflects the patient's condition.

5. To prevent a Valsalva maneuver in a client recovering from an acute myocardial infarction, the nurse would:

Correct answer: B

Rationale: Administering stool softeners daily is crucial to prevent straining during defecation, which can lead to the Valsalva maneuver. Straining can increase intrathoracic pressure, decrease venous return to the heart, and reduce cardiac output, potentially worsening the client's condition. If constipation occurs, the use of laxatives may be necessary to avoid straining. Administering antidysrhythmics on an as-needed basis is not indicated for preventing the Valsalva maneuver; they are used to manage dysrhythmias. Strict bed rest is not necessary and may lead to complications such as deconditioning, DVT, and respiratory issues in the absence of specific medical indications.

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