Nursing Elites

1. Which of the following statements is true about ischemic colitis?

• A. Typically requires colonic resection
• B. Affects the watershed areas of the colon, namely, the splenic flexure, right colon, and rectum
• C. Is only seen in the elderly
• D. Requires colonoscopic intervention

Correct answer: B

Rationale: Ischemic colitis most often results from low-flow states associated with hypotension or poor perfusion. As a result, the vascular watershed areas of the colon, including the splenic flexure, right colon, and rectum, are at highest risk of ischemic injury. Therefore, option B is correct as it accurately identifies the areas commonly affected by ischemic colitis.

2. A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?

• A. Prothrombin time (PT)
• B. Partial thromboplastin time (PTT)
• C. Bleeding time
• D. Platelet count

Correct answer: B

Rationale: The correct answer is B: Partial thromboplastin time (PTT). Heparin affects the intrinsic pathway of the coagulation cascade, which is reflected by changes in the PTT. Monitoring the PTT helps ensure that the patient's blood is within the desired therapeutic range and prevents complications related to clotting or bleeding. Prothrombin time (PT) primarily assesses the extrinsic pathway and is not as sensitive to heparin therapy. Bleeding time and platelet count are not specific tests for monitoring the effectiveness of heparin therapy in DVT.

3. A client with liver cirrhosis and ascites is being treated with spironolactone. What is a key nursing consideration for this medication?

• A. Monitoring for signs of hyperkalemia
• B. Checking for signs of hypoglycemia
• C. Assessing for signs of dehydration
• D. Observing for symptoms of hyponatremia

Correct answer: A

Rationale: Spironolactone is a potassium-sparing diuretic, which can lead to hyperkalemia as it helps retain potassium in the body. Therefore, monitoring for signs of hyperkalemia such as muscle weakness, arrhythmias, or ECG changes is crucial to prevent potential complications.

4. A patient with epilepsy is prescribed phenytoin. What is the primary side effect the nurse should monitor for?

• A. Hypotension
• B. Gingival hyperplasia
• C. Bradycardia
• D. Hyperkalemia

Correct answer: B

Rationale: Gingival hyperplasia, or overgrowth of the gums, is a common side effect of phenytoin. Patients should maintain good oral hygiene to minimize this effect.

5. 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.

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