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 end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should be reported to the healthcare provider before the procedure?

• A. Serum creatinine of 2.5 mg/dL
• B. Serum potassium of 6.5 mEq/L
• C. Serum calcium of 8 mg/dL
• D. Serum bicarbonate of 24 mEq/L

Correct answer: B

Rationale: The correct answer is B. A serum potassium level of 6.5 mEq/L is dangerously high and should be reported before hemodialysis to prevent cardiac complications. High potassium levels can lead to life-threatening arrhythmias. Serum creatinine (Choice A) is elevated in renal dysfunction but not the most critical value to report before hemodialysis. Serum calcium (Choice C) and serum bicarbonate (Choice D) levels are within normal limits and are not immediate concerns before hemodialysis.

3. The nurse observes an unlicensed assistive personnel (UAP) using an alcohol-based gel hand cleaner before performing catheter care. The UAP rubs both hands thoroughly for 2 minutes while standing at the bedside. What action should the nurse take?

• A. Encourage the UAP to remain in the client's room until the hand rub is completed.
• B. Explain that the hand rub can be completed in less than 2 minutes.
• C. Inform the UAP that handwashing helps to promote better asepsis.
• D. Determine why the UAP was not wearing gloves in the client's room.

Correct answer: B

Rationale: The correct answer is B. Alcohol-based hand rubs are effective with a shorter rub time, typically around 20-30 seconds. Standing at the bedside for 2 minutes to rub hands thoroughly is unnecessary and can lead to wastage of resources. It's essential for the nurse to educate the UAP on proper hand hygiene techniques to ensure efficient and effective infection control practices. Choices A, C, and D are incorrect because encouraging the UAP to remain in the client's room, discussing handwashing instead of hand rubs, and questioning glove use are not the most appropriate actions in this scenario.

4. A 59-year-old male client comes to the clinic and reports his concern over a lump that 'just popped up on my neck about a week ago.' In performing an examination of the lump, the nurse palpates a large, nontender, hardened left subclavian lymph node. There is no overlying tissue inflammation. What do these findings suggest?

• A. Malignancy
• B. Infection
• C. Benign cyst
• D. Lymphadenitis

Correct answer: A

Rationale: The correct answer is A: Malignancy. A large, non-tender, hardened lymph node is a typical sign of malignancy and warrants further investigation. Choice B (Infection) is incorrect because typically in infections, lymph nodes are tender and may show signs of inflammation. Choice C (Benign cyst) is incorrect as a benign cyst would usually present as a soft, mobile lump. Choice D (Lymphadenitis) is incorrect as lymphadenitis usually presents with tender and enlarged lymph nodes due to inflammation.

5. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

• A. Prothrombin time (PT)
• B. Hemoglobin level
• C. International Normalized Ratio (INR)
• D. Serum sodium level

Correct answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client prescribed warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation, reducing the risk of bleeding or clotting complications. Prothrombin time (A) is used to calculate the INR and monitor the effectiveness of warfarin therapy. Hemoglobin level (B) is important but not the primary lab value to monitor when a client is on warfarin. Serum sodium level (D) is not directly related to monitoring warfarin therapy.

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