Nursing Elites

1. The client has acute kidney injury (AKI). Which assessment finding requires immediate intervention?

• A. Urine output of 50 ml in the last hour.
• B. Serum potassium of 6.2 mEq/L.
• C. Blood pressure of 150/90 mm Hg.
• D. Serum creatinine of 2.5 mg/dL.

Correct answer: B

Rationale: An elevated serum potassium level of 6.2 mEq/L in a client with AKI can lead to life-threatening cardiac arrhythmias, necessitating immediate intervention. Hyperkalemia is a serious complication in AKI as impaired kidney function can result in the accumulation of potassium in the blood, posing a risk of cardiac arrest. Prompt treatment to lower potassium levels is crucial to prevent cardiac complications in this situation.

2. A client with peptic ulcer disease is prescribed ranitidine (Zantac). Which statement by the client indicates the need for further teaching?

• A. I will take this medication at bedtime.
• B. I need to avoid smoking while taking this medication.
• C. I should take this medication with meals.
• D. This medication will help reduce stomach acid.

Correct answer: C

Rationale: The client's statement that they should take ranitidine with meals indicates a need for further teaching. Ranitidine is typically taken at bedtime or before meals to be most effective in reducing stomach acid. Taking it with meals may not provide the optimal therapeutic effect.

3. 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.

4. A 36-year-old woman complains of reflux symptoms and intermittent diarrhea. The diagnosis of gastrinoma is suspected so a fasting serum gastrin is obtained and found to be 280 pg/mL (normal <115 pg/mL). An abdominal CT is negative. What would you do now?

• A. Refer her for an exploratory laparotomy
• B. Measure serum gastrin in response to secretin infusion
• C. Treat her for H. pylori
• D. Obtain a dedicated small bowel series

Correct answer: B

Rationale: The next step after finding an elevated fasting serum gastrin level is to perform a secretin stimulation test. This test helps differentiate between gastrinoma and other causes of elevated gastrin levels, such as proton-pump inhibitor therapy or H2 antagonists. In gastrinoma, the serum gastrin level should further increase after secretin infusion, while in other conditions, the levels would not significantly rise. Exploratory laparotomy would be premature without confirming the diagnosis. Treating for H. pylori is not indicated as the diagnosis of gastrinoma is under consideration and not Helicobacter pylori infection. A dedicated small bowel series is not the next appropriate step in this scenario.

5. The healthcare provider is caring for a client with Guillain-Barré syndrome. Which assessment finding requires the healthcare provider's immediate action?

• A. Loss of deep tendon reflexes.
• B. Ascending weakness.
• C. New onset of confusion.
• D. Decreased vital capacity.

Correct answer: D

Rationale: Decreased vital capacity is the most critical assessment finding in a client with Guillain-Barré syndrome as it indicates respiratory compromise. This requires immediate intervention to ensure adequate ventilation and prevent respiratory failure, a common complication of this syndrome. Monitoring and maintaining respiratory function are vital in these clients to prevent complications such as respiratory distress, hypoxia, and respiratory failure. Loss of deep tendon reflexes and ascending weakness are typical manifestations of Guillain-Barré syndrome but do not require immediate action compared to compromised respiratory function. New onset of confusion may be a concern but is not as immediately life-threatening as decreased vital capacity.

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