Nursing Elites

1. A nurse is reviewing the laboratory results of a client who is receiving warfarin therapy for atrial fibrillation. Which of the following laboratory values should the nurse report to the provider?

• A. INR 1.8
• B. Hemoglobin 14 g/dL
• C. Platelets 175,000/mm³
• D. Potassium 3.8 mEq/L

Correct answer: A

Rationale: The correct answer is A. An INR of 1.8 is below the therapeutic range for a client receiving warfarin, indicating a potential risk of blood clots. This value should be reported to the provider for further evaluation and possible adjustment of the warfarin dosage. Choices B, C, and D are within normal ranges and do not directly relate to the effectiveness or safety of warfarin therapy in this scenario, making them less urgent to report.

2. A nurse is preparing to administer a blood transfusion to a client. Which of the following actions should the nurse take?

• A. Monitor the client's vital signs every 4 hours.
• B. Start the transfusion with 0.9% sodium chloride.
• C. Administer the transfusion over 6 hours.
• D. Infuse the first 500 mL of blood over 1 hour.

Correct answer: B

Rationale: The correct answer is B: Start the transfusion with 0.9% sodium chloride. 0.9% sodium chloride is the only IV solution that is compatible with blood products and should be used to prime the tubing before a transfusion. Choice A is incorrect because vital signs should be monitored more frequently, typically every 15 minutes at the beginning of the transfusion. Choice C is incorrect as blood transfusions are usually administered over 2-4 hours, not 6 hours. Choice D is incorrect as the first 500 mL of blood should be infused slowly over 1-2 hours to monitor for any adverse reactions.

3. A nurse is caring for a client who has a prescription for furosemide. The nurse should monitor the client for which of the following electrolyte imbalances?

• A. Hypernatremia
• B. Hypokalemia
• C. Hypercalcemia
• D. Hypomagnesemia

Correct answer: B

Rationale: The correct answer is B: Hypokalemia. Furosemide, a loop diuretic, can cause potassium loss leading to hypokalemia. Monitoring potassium levels is crucial as low potassium can result in various complications like cardiac dysrhythmias. Choices A, C, and D are incorrect. Hypernatremia is high sodium levels, which are not typically associated with furosemide use. Hypercalcemia is elevated calcium levels and hypomagnesemia is low magnesium levels, which are not the primary electrolyte imbalances associated with furosemide.

4. A nurse is caring for a client who has cirrhosis and a new prescription for lactulose. The nurse should monitor the client for which of the following therapeutic effects of this medication?

• A. Improved mental status.
• B. Increased urine output.
• C. Decreased serum ammonia.
• D. Decreased bilirubin levels.

Correct answer: C

Rationale: The correct answer is C: Decreased serum ammonia. Lactulose is prescribed to decrease serum ammonia levels in clients with cirrhosis and hepatic encephalopathy. By reducing serum ammonia, lactulose helps improve the mental status of these clients. Therefore, monitoring for decreased serum ammonia is crucial to assess the effectiveness of lactulose therapy. Choice A (Improved mental status) is indirectly related as it is the desired outcome of decreasing ammonia levels. Choices B (Increased urine output) and D (Decreased bilirubin levels) are not directly associated with the therapeutic effects of lactulose in cirrhosis and hepatic encephalopathy.

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?

• A. Hemoglobin
• B. aPTT
• C. INR
• D. Platelet count

Correct answer: B

Rationale: The correct answer is B: aPTT. The activated partial thromboplastin time (aPTT) is monitored to assess the therapeutic effect of heparin and to adjust the infusion rate if needed. Monitoring hemoglobin levels (choice A) is important for assessing anemia but is not specific to heparin therapy. INR (choice C) is used to monitor the effects of warfarin, not heparin. Platelet count (choice D) is important to monitor for heparin-induced thrombocytopenia, but aPTT is the primary laboratory value used to monitor heparin therapy.

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