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. 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 an echocardiogram. This diagnostic test is crucial in assessing ventricular function and identifying the cause of shortness of breath in a client with heart failure. It provides valuable information about the heart's structure, function, and blood flow. While a chest X-ray may show signs of heart failure, it does not directly assess cardiac function like an echocardiogram does. Arterial blood gases (ABGs) are useful to evaluate oxygenation and acid-base balance but do not provide information specific to heart function. An electrocardiogram (ECG) assesses the heart's electrical activity and rhythm, which is important but may not provide the detailed structural information needed in this scenario.

3. A client with chronic kidney disease (CKD) is scheduled for a hemodialysis session. Which laboratory value should the nurse monitor closely?

• A. Serum potassium
• B. Serum creatinine
• C. Serum sodium
• D. Serum chloride

Correct answer: C

Rationale: The correct answer is C: Serum sodium. In a client with chronic kidney disease (CKD) scheduled for hemodialysis, monitoring serum sodium levels closely is essential. Hemodialysis can cause rapid shifts in sodium levels, leading to electrolyte imbalances. While serum potassium (choice A) is important to monitor in CKD, it is not the most crucial before hemodialysis. Serum creatinine (choice B) is an indicator of kidney function but is not the most immediate concern before hemodialysis. Serum chloride (choice D) is not typically the primary electrolyte of concern in CKD patients before hemodialysis.

4. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which finding requires immediate intervention?

• A. Oxygen saturation of 90%
• B. Respiratory rate of 24 breaths per minute
• C. Use of accessory muscles
• D. Blood pressure of 110/70 mmHg

Correct answer: C

Rationale: The correct answer is C. The use of accessory muscles indicates increased work of breathing and may signal respiratory failure in a client with COPD, requiring immediate intervention. Oxygen saturation of 90% is within an acceptable range for COPD patients on supplemental oxygen. A respiratory rate of 24 breaths per minute is slightly elevated but not an immediate concern. A blood pressure of 110/70 mmHg is within the normal range and does not require immediate intervention in this scenario.

5. A client with chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which intervention should the nurse implement first?

• A. Administer oxygen therapy as prescribed.
• B. Elevate the head of the bed.
• C. Obtain a sputum culture.
• D. Administer antibiotics as prescribed.

Correct answer: A

Rationale: The correct answer is to administer oxygen therapy as prescribed. In COPD exacerbation, the priority is to improve oxygenation. Administering oxygen therapy helps ensure an adequate oxygen supply to the body's tissues. Elevating the head of the bed can improve ventilation but is not the first intervention needed in this situation. Obtaining a sputum culture and administering antibiotics are important in COPD exacerbation but come after ensuring proper oxygenation.

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