Nursing Elites

1. A client with a cold is taking the antitussive benzonatate (Tessalon). Which assessment data indicates to the nurse that the medication is effective?

• A. Reports reduced nasal discharge.
• B. Denies having coughing spells.
• C. Able to sleep through the night.
• D. Expectorating bronchial secretions.

Correct answer: B

Rationale: The correct answer is B. Denying having coughing spells indicates the effectiveness of benzonatate, an antitussive that suppresses coughing. The goal of antitussive medications like benzonatate is to reduce or eliminate coughing, so the absence of coughing spells signifies the drug's efficacy. The other options do not directly reflect the medication's intended effect and are not specific indicators of benzonatate's effectiveness.

2. In evaluating a 10-year-old child with meningitis suspected of having diabetes insipidus, which finding is indicative of diabetes insipidus?

• A. Decreased urine specific gravity.
• B. Elevated urine glucose.
• C. Decreased serum potassium.
• D. Increased serum sodium.

Correct answer: A

Rationale: Diabetes insipidus is characterized by the kidneys' inability to concentrate urine, leading to decreased urine specific gravity. This results in the excretion of large volumes of dilute urine, causing a decrease in urine specific gravity. Therefore, when evaluating a suspected case of diabetes insipidus, a finding of decreased urine specific gravity is indicative of this condition.

3. A client with liver cirrhosis is prescribed lactulose. What is the purpose of this medication?

• A. To lower blood sugar levels
• B. To reduce ammonia levels
• C. To treat liver inflammation
• D. To improve bile flow

Correct answer: B

Rationale: Lactulose is prescribed to reduce ammonia levels in clients with liver cirrhosis. Elevated ammonia levels can lead to hepatic encephalopathy, a serious complication of liver cirrhosis. Lactulose works by acidifying the colon, which in turn traps ammonia in the colon and helps its elimination from the body through stool, thereby reducing the risk of hepatic encephalopathy. Choice A is incorrect because lactulose does not lower blood sugar levels. Choice C is incorrect as lactulose is not used to treat liver inflammation. Choice D is incorrect as lactulose does not improve bile flow.

4. A client admitted with a diagnosis of sepsis has a central venous pressure (CVP) of 15 mm Hg. What should the nurse do first?

• A. Administer a fluid bolus of 500 ml.
• B. Notify the healthcare provider immediately.
• C. Administer a diuretic.
• D. Continue to monitor the CVP.

Correct answer: B

Rationale: A CVP of 15 mm Hg is higher than normal, indicating possible fluid overload or heart failure, which needs immediate attention. Notifying the healthcare provider is crucial as they can evaluate the client's condition, order appropriate interventions, and prevent potential complications.

5. 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.

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