Nursing Elites

1. A patient with type 2 diabetes is prescribed metformin. What instruction should the nurse provide regarding this medication?

• A. Take the medication on an empty stomach.
• B. Monitor for signs of hypoglycemia.
• C. Take the medication with meals.
• D. Increase intake of simple carbohydrates.

Correct answer: C

Rationale: The correct instruction for a patient prescribed metformin is to take the medication with meals. This helps reduce gastrointestinal side effects commonly associated with metformin. Patients should also be educated about the signs of lactic acidosis, a rare but serious side effect associated with metformin use.

2. What is the best therapy for a 65-year-old man with symptoms of regurgitation, chest pain, dysphagia, weight loss, dilated esophagus, and an absent gastric air bubble on CXR?

• A. Proton-pump inhibitor
• B. Endoscopic balloon dilatation
• C. Sucralfate
• D. Esophageal resection

Correct answer: B

Rationale: The patient's presentation and radiologic findings are consistent with achalasia. The absence of a mass on upper endoscopy and CT scan helps rule out secondary causes. Achalasia is best managed with endoscopic balloon dilatation or myotomy. Proton-pump inhibitors are not effective for achalasia. Sucralfate is not a primary treatment for achalasia. Esophageal resection is only considered if malignancy develops. Patients with achalasia may experience chest pain and weight loss due to food accumulation in the dilated esophagus. Endoscopic balloon dilatation is a safe and effective treatment option for improving symptoms in achalasia patients.

3. 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.

4. A healthcare professional is assessing a client with severe dehydration. Which finding indicates a need for immediate intervention?

• A. Heart rate of 110 beats per minute.
• B. Blood pressure of 90/60 mm Hg.
• C. Urine output of 20 ml/hour.
• D. Dry mucous membranes.

Correct answer: C

Rationale: A urine output of 20 ml/hour indicates severe dehydration and impaired renal function. This finding suggests a critical state where the kidneys are conserving water, leading to reduced urine output. Immediate intervention is required to restore fluid balance and prevent further complications associated with severe dehydration. Choice A, a heart rate of 110 beats per minute, may indicate dehydration but is not as severe as the critically low urine output. Choice B, a blood pressure of 90/60 mm Hg, can be seen in dehydration but is not as concerning as the extremely low urine output. Choice D, dry mucous membranes, is a common sign of dehydration but does not require immediate intervention compared to the severely reduced urine output.

5. The healthcare provider is caring for a patient who is taking warfarin (Coumadin). Which laboratory value should the healthcare provider monitor closely?

• A. Platelet count.
• B. Prothrombin time (PT).
• C. Hemoglobin level.
• D. White blood cell count.

Correct answer: B

Rationale: Corrected Rationale: When caring for a patient on warfarin, monitoring prothrombin time (PT) is crucial. PT helps assess the blood's ability to clot properly, ensuring the patient maintains therapeutic anticoagulation levels while minimizing bleeding risks. Platelet count (Choice A) is important but not the most critical for warfarin therapy. Hemoglobin level (Choice C) and white blood cell count (Choice D) are not directly related to monitoring the effects of warfarin.

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