Nursing Elites

1. The healthcare provider should observe most closely for drug toxicity when a client receives a medication that has which characteristic?

• A. Low bioavailability
• B. Rapid onset of action
• C. Short half-life
• D. Narrow therapeutic index

Correct answer: D

Rationale: The correct answer is D, narrow therapeutic index. Narrow therapeutic index (NTI) drugs are defined as those drugs where small differences in dose or blood concentration may lead to serious therapeutic failures or adverse drug reactions. Choices A, B, and C are not directly related to the risk of drug toxicity. Low bioavailability (Choice A) refers to the amount of drug that enters the bloodstream unchanged after administration. Rapid onset of action (Choice B) and short half-life (Choice C) are characteristics related to drug effectiveness and metabolism but do not necessarily indicate a higher risk of drug toxicity.

2. A client with a history of chronic heart failure is admitted with shortness of breath and crackles in the lungs. Which diagnostic test should the nurse anticipate preparing the client for first?

• A. Chest X-ray
• B. Arterial blood gases (ABGs)
• C. Echocardiogram
• D. Electrocardiogram (ECG)

Correct answer: C

Rationale: The correct answer is C: Echocardiogram. An echocardiogram should be performed first to assess ventricular function and evaluate the cause of shortness of breath and crackles in a client with heart failure. An echocardiogram provides valuable information about the heart's structure and function, helping to identify potential issues related to heart failure. Chest X-ray (Choice A) may be done to assess for changes in heart size or fluid in the lungs but does not directly assess heart function. Arterial blood gases (Choice B) may provide information about oxygenation but do not directly evaluate heart function. An electrocardiogram (Choice D) assesses the heart's electrical activity but does not provide detailed information about ventricular function, which is crucial in heart failure management.

3. A woman with an anxiety disorder calls her obstetrician's office and tells the nurse of increased anxiety since the normal vaginal delivery of her son three weeks ago. Since she is breastfeeding, she stopped taking her antianxiety medications, but thinks she may need to start taking them again because of her increased anxiety. What response is best for the nurse to provide this woman?

• A. Describe the transmission of drugs to the infant through breast milk
• B. Encourage her to use stress-relieving alternatives, such as deep breathing exercises
• C. Inform her that some antianxiety medications are safe to take while breastfeeding
• D. Explain that anxiety is a normal response for the mother of a 3-week-old.

Correct answer: C

Rationale: There are several antianxiety medications that are not contraindicated for breastfeeding mothers, so it is important to inform her of this option.

4. The healthcare provider is assessing a client with left-sided heart failure. Which laboratory value should be closely monitored?

• A. Serum sodium level
• B. Serum potassium level
• C. Serum creatinine level
• D. Serum glucose level

Correct answer: B

Rationale: In a client with left-sided heart failure, monitoring serum potassium levels is crucial. This helps in assessing kidney function and fluid balance. Elevated potassium levels can result from impaired kidney function, which is common in heart failure. Monitoring sodium levels (choice A) is important in heart failure but not specifically related to left-sided heart failure. Serum creatinine (choice C) reflects kidney function but is not the most critical value to monitor in this case. Serum glucose level (choice D) is important but not the priority when assessing left-sided heart failure.

5. The nurse is assessing a client with a small bowel obstruction who was hospitalized 24 hours ago. Which assessment finding should the nurse report immediately to the healthcare provider?

• A. Hypoactive bowel sounds in the lower quadrant.
• B. Rebound tenderness in the upper quadrants.
• C. Tympany with percussion of the abdomen.
• D. Light-colored gastric aspirate via the nasogastric tube.

Correct answer: B

Rationale: Rebound tenderness in the upper quadrants may indicate peritonitis, which requires prompt medical attention. Hypoactive bowel sounds are expected in small bowel obstruction and would not be a priority over signs of peritonitis. Tympany with percussion is a normal finding and not a cause for immediate concern. Light-colored gastric aspirate could indicate various issues but is not as urgent as peritonitis.

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