Nursing Elites

1. A nurse is planning care for a client who has a new prescription for warfarin. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the therapy?

• A. Serum calcium level
• B. Platelet count
• C. INR
• D. WBC count

Correct answer: C

Rationale: Corrected Rationale: The nurse should monitor the client's INR to determine the effectiveness of warfarin therapy. INR monitoring is crucial as it reflects the blood's ability to clot properly. Warfarin is commonly used as an anticoagulant, and maintaining the INR within the therapeutic range ensures that the client is protected from both clotting and bleeding events. Monitoring serum calcium levels, platelet count, or WBC count is not directly related to assessing the effectiveness of warfarin therapy.

2. A nurse is assessing a client who is receiving total parenteral nutrition (TPN). Which of the following findings should the nurse report to the provider?

• A. Blood glucose of 110 mg/dL.
• B. Weight loss of 0.5 kg (1.1 lb) in 24 hours.
• C. WBC count of 6,500/mm3.
• D. Temperature of 37.3°C (99.1°F).

Correct answer: B

Rationale: A weight loss of 0.5 kg (1.1 lb) in 24 hours may indicate dehydration or malnutrition, which are critical concerns for a client receiving total parenteral nutrition (TPN). Therefore, the nurse should report this finding to the provider. Elevated blood glucose levels (Choice A) can be managed by adjusting TPN components, WBC count (Choice C) and a slightly elevated temperature (Choice D) are not directly related to TPN administration and may not require immediate intervention.

3. A client has a chest tube connected to a water-seal drainage system. Which of the following actions should be taken?

• A. Clamp the chest tube during ambulation
• B. Keep the collection chamber below the level of the chest
• C. Add sterile water to the water-seal chamber
• D. Empty the collection chamber every 12 hours

Correct answer: C

Rationale: The correct action for the nurse to take when caring for a client with a chest tube connected to a water-seal drainage system is to add sterile water to the water-seal chamber. This is necessary to maintain the correct water level for proper chest tube function. Clamping the chest tube during ambulation (Choice A) is incorrect as it can lead to complications by obstructing drainage. Keeping the collection chamber below the level of the chest (Choice B) is incorrect because it should be kept below the chest to facilitate drainage. Emptying the collection chamber every 12 hours (Choice D) is incorrect as it should be emptied whenever it reaches the fill line or as per facility policy, not on a fixed time schedule.

4. A nurse is caring for a client who is receiving total parenteral nutrition (TPN). Which of the following findings should the nurse report to the provider?

• A. Blood glucose level of 150 mg/dL
• B. Serum sodium level of 138 mEq/L
• C. Serum potassium level of 3.0 mEq/L
• D. Serum albumin level of 3.8 g/dL

Correct answer: C

Rationale: The correct answer is C. A serum potassium level of 3.0 mEq/L is below the normal range and indicates hypokalemia, which should be reported to the provider. Hypokalemia can lead to serious complications such as cardiac arrhythmias. Choices A, B, and D are within normal ranges and do not require immediate reporting. A blood glucose level of 150 mg/dL is slightly elevated but not critically high. A serum sodium level of 138 mEq/L is within the normal range. A serum albumin level of 3.8 g/dL is also within the normal range.

5. A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?

• A. Serum potassium
• B. Platelets
• C. aPTT
• D. INR

Correct answer: C

Rationale: The correct answer is C: aPTT. Monitoring the activated partial thromboplastin time (aPTT) is crucial when a client is receiving heparin therapy. The aPTT reflects the clotting time and helps assess the effectiveness of heparin in preventing clot formation. Keeping the aPTT within the therapeutic range ensures that the medication is working optimally. Choices A, B, and D are incorrect because serum potassium, platelets, and INR are not direct indicators of heparin's effectiveness or therapeutic range.

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