Nursing Elites

1. A 35-year-old man presents with fatigue, weight loss, and hyperpigmentation of the skin. Laboratory tests reveal hyponatremia, hyperkalemia, and low cortisol levels. What is the most likely diagnosis?

• A. Cushing's syndrome
• B. Addison's disease
• C. Hypothyroidism
• D. Pheochromocytoma

Correct answer: B

Rationale: The clinical presentation of a 35-year-old man with fatigue, weight loss, hyperpigmentation of the skin, hyponatremia, hyperkalemia, and low cortisol levels is classic for Addison's disease. These findings are consistent with primary adrenal insufficiency, where the adrenal glands fail to produce adequate cortisol. In Addison's disease, the adrenal cortex is damaged, leading to decreased cortisol production and elevated levels of ACTH. This results in symptoms such as fatigue, weight loss, and hyperpigmentation due to increased ACTH production stimulating melanocytes. Hyponatremia and hyperkalemia are common electrolyte abnormalities seen in Addison's disease due to aldosterone deficiency. Therefore, the correct diagnosis in this case is Addison's disease.

2. The client has a nasogastric (NG) tube and is receiving enteral feedings. What intervention should the nurse implement to prevent complications associated with the NG tube?

• A. Flush the NG tube with water before and after feedings.
• B. Check gastric residual volume every 6 hours.
• C. Keep the head of the bed elevated at 30 degrees.
• D. Replace the NG tube every 24 hours.

Correct answer: C

Rationale: Keeping the head of the bed elevated at 30 degrees is crucial in preventing aspiration, a common complication associated with nasogastric (NG) tubes and enteral feedings. This position helps reduce the risk of reflux and aspiration of gastric contents into the lungs, promoting client safety and preventing respiratory complications. Flushing the NG tube with water before and after feedings (Choice A) is not the primary intervention to prevent complications. Checking gastric residual volume every 6 hours (Choice B) is important but not directly related to preventing complications associated with the NG tube. Replacing the NG tube every 24 hours (Choice D) is not a standard practice and is not necessary to prevent complications if the tube is functioning properly.

3. A client with a history of deep vein thrombosis (DVT) is receiving warfarin (Coumadin). Which laboratory value indicates a therapeutic effect of the medication?

• A. INR of 2.5.
• B. PTT of 45 seconds.
• C. Hemoglobin of 12 g/dL.
• D. Platelet count of 150,000/mm³.

Correct answer: A

Rationale: An INR (International Normalized Ratio) of 2.5 indicates a therapeutic level for clients receiving warfarin (Coumadin) to prevent thromboembolism. It is essential to monitor INR levels regularly when on warfarin therapy to ensure that the blood's ability to clot is within the desired range to prevent both clotting and excessive bleeding.

4. What instruction should the nurse give regarding the administration of alendronate to a patient with osteoporosis?

• A. Take the medication with milk.
• B. Lie down for 30 minutes after taking the medication.
• C. Take the medication with a full glass of water.
• D. Take the medication before bedtime.

Correct answer: C

Rationale: The correct instruction for administering alendronate to a patient with osteoporosis is to take the medication with a full glass of water first thing in the morning. It is important for the patient to remain upright for at least 30 minutes after taking the medication to prevent esophageal irritation. Taking alendronate with milk, lying down after intake, or taking it before bedtime can reduce the medication's effectiveness or increase the risk of side effects.

5. A healthcare professional is preparing to administer digoxin 0.25 mg PO daily. The amount available is digoxin 0.125 mg tablets. How many tablets should the healthcare professional administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

• A. 1
• B. 2
• C. 3
• D. 4

Correct answer: B

Rationale: To achieve the prescribed dose of 0.25 mg, the healthcare professional should administer 2 tablets of 0.125 mg each, totaling 0.25 mg.

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