Nursing Elites

1. An otherwise healthy 45-year-old man presents with severe hematochezia and moderate abdominal cramping since this morning. A barium enema one year ago was normal. On examination, his blood pressure is 120/78 and pulse is 100 while lying; when standing, the blood pressure is 110/76 and pulse is 136. His hematocrit is 34. What is the most likely cause of bleeding?

• A. Diverticular bleed
• B. Duodenal ulcer
• C. Inflammatory bowel disease
• D. Vascular ectasia (watermelon stomach)

Correct answer: B

Rationale: The patient's presentation with hematochezia, moderate abdominal cramping, and hemodynamic changes (increased pulse on standing) suggests an upper gastrointestinal bleed. The drop in blood pressure and rise in pulse rate when standing indicate orthostatic hypotension, which is a sign of significant blood loss. The absence of melena does not rule out an upper GI bleed. Ulcers in the duodenal bulb can erode into the gastroduodenal artery, leading to brisk blood loss. A normal barium enema one year ago makes diverticular bleeding less likely. Inflammatory bowel disease usually does not cause severe acute GI bleeding unless there is ulceration into a vessel. Vascular ectasia, like watermelon stomach, typically presents with chronic blood loss and iron deficiency anemia, more common in older women. The absence of vomiting and the presence of hematochezia make Mallory-Weiss tear less likely in this case.

2. A client is admitted with a diagnosis of acute pancreatitis. Which laboratory value should the nurse monitor closely?

• A. Serum amylase.
• B. Serum sodium.
• C. Serum calcium.
• D. Serum potassium.

Correct answer: A

Rationale: In acute pancreatitis, serum amylase is a crucial laboratory value to monitor closely. Elevated levels of serum amylase are a key indicator of pancreatic inflammation and can help confirm the diagnosis of acute pancreatitis. Therefore, monitoring serum amylase levels is essential for assessing the progression and severity of the condition in a client with acute pancreatitis.

3. A client with Addison's disease is being treated with fludrocortisone (Florinef). Which electrolyte imbalance should the nurse monitor for?

• A. Hyperkalemia.
• B. Hyponatremia.
• C. Hypernatremia.
• D. Hypocalcemia.

Correct answer: C

Rationale: Fludrocortisone, such as Florinef, is a mineralocorticoid that promotes sodium retention and potassium excretion, which can lead to hypernatremia. Therefore, the nurse should closely monitor for hypernatremia when a client with Addison's disease is being treated with fludrocortisone. Hyperkalemia (Choice A) is incorrect because fludrocortisone promotes potassium excretion, leading to hypokalemia rather than hyperkalemia. Hyponatremia (Choice B) is incorrect as fludrocortisone promotes sodium retention. Hypocalcemia (Choice D) is unrelated to the action of fludrocortisone.

4. A patient with cirrhosis of the liver and ascites is scheduled for a paracentesis. What should the nurse do to prepare the patient for the procedure?

• A. Have the patient void immediately before the procedure.
• B. Position the patient upright or semi-Fowler's in bed.
• C. Administer a full liquid diet.
• D. Encourage the patient to ambulate for 30 minutes.

Correct answer: A

Rationale: The correct preparation for a paracentesis in a patient with cirrhosis and ascites includes having the patient void immediately before the procedure. This is important to reduce the risk of bladder puncture during the paracentesis. Positioning for a paracentesis is typically upright or semi-Fowler's, not flat in bed. Administering a full liquid diet or encouraging ambulation for 30 minutes are not directly related to preparing a patient for a paracentesis procedure.

5. In a patient with a history of chronic iron deficiency anemia requiring a recent blood transfusion and an extensive GI work-up, which statement is true based on their medications?

• A. A dedicated small bowel series has a high likelihood of being positive
• B. 81 mg of aspirin per day decreases the benefit of using a COX II inhibitor
• C. The patient should have a provocative arteriogram with heparin infusion to identify the source of blood loss
• D. Hormonal therapy has been shown to be effective in decreasing blood loss due to arteriovenous malformations

Correct answer: B

Rationale: The correct answer is B. Taking even a low dose of aspirin per day, such as 81 mg, can reduce the protective effect on the gastrointestinal mucosa that is gained from using a COX II selective inhibitor. Aspirin can increase the risk of gastrointestinal bleeding, which can counteract the benefits of COX II inhibitors in protecting the stomach lining.

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