Nursing Elites

1. Which lab test is used to assess renal function?

• A. Check blood glucose levels
• B. Monitor serum creatinine
• C. Monitor BUN
• D. Check electrolyte levels

Correct answer: B

Rationale: The correct answer is B: Monitor serum creatinine. Serum creatinine is a key indicator of renal function as it reflects the glomerular filtration rate. An increase in serum creatinine levels indicates impaired kidney function. Checking blood glucose levels (choice A) is not specific to assessing renal function but is used to diagnose diabetes. Monitoring BUN (choice C) is important but not as specific as serum creatinine in assessing renal function. Checking electrolyte levels (choice D) is essential in assessing kidney function but is not as specific as monitoring serum creatinine.

2. A nurse is reviewing the laboratory values of a client who is receiving heparin therapy for deep-vein thrombosis. Which of the following values should the nurse report to the provider?

• A. INR 2.0
• B. Platelet count 150,000/mm3
• C. aPTT 60 seconds
• D. WBC count 8,000/mm3

Correct answer: C

Rationale: The correct answer is C: aPTT 60 seconds. An aPTT of 60 seconds is above the therapeutic range for clients on heparin therapy and indicates a risk of bleeding, so it should be reported to the provider. INR of 2.0 is within the therapeutic range for clients on heparin therapy, so it does not require immediate reporting. Platelet count of 150,000/mm3 and WBC count of 8,000/mm3 are within normal ranges and not directly related to heparin therapy, so they do not need to be reported in this context.

3. A nurse is caring for a client who has a pulmonary embolism. The nurse should identify the effectiveness of the treatment by observing which of the following?

• A. A chest x-ray reveals increased density in all fields
• B. The client reports feeling less anxious
• C. Diminished breath sounds are auscultated bilaterally
• D. ABG results include pH 7.48, PaO2 77 mm Hg, and PaCO2 47 mm Hg

Correct answer: B

Rationale: The correct answer is B because when a client reports feeling less anxious, it suggests that the treatment for a pulmonary embolism is effective. This is a good indicator of the client's overall well-being and response to treatment. Choices A, C, and D are incorrect because a chest x-ray revealing increased density in all fields, diminished breath sounds auscultated bilaterally, and ABG results showing specific values do not directly correlate with the effectiveness of treatment for a pulmonary embolism. While these assessments are important for monitoring the client's condition, the client's subjective report of feeling less anxious provides a more direct insight into the impact of the treatment.

4. A nurse is assessing a client who has been taking lithium for bipolar disorder. Which of the following findings should the nurse report to the provider?

• A. Tremors
• B. Increased thirst
• C. Weight gain
• D. Diarrhea

Correct answer: A

Rationale: Corrected Rationale: Tremors can indicate lithium toxicity, which should be reported to the provider for further evaluation. Tremors are a significant sign of lithium toxicity and can lead to serious complications if not addressed promptly. Increased thirst, weight gain, and diarrhea are common side effects of lithium but are not typically indicative of toxicity. Therefore, the nurse should prioritize reporting tremors as it requires immediate attention.

5. Which lab value is critical for a patient on heparin therapy?

• A. Monitor aPTT
• B. Monitor INR
• C. Monitor platelet count
• D. Monitor sodium levels

Correct answer: A

Rationale: The correct answer is to monitor aPTT. Activated Partial Thromboplastin Time (aPTT) is crucial for patients on heparin therapy as it helps determine the clotting ability of the blood. By monitoring aPTT, healthcare providers can adjust the dosage of heparin to maintain therapeutic levels and prevent bleeding complications. Monitoring INR is more commonly associated with warfarin therapy, not heparin. Monitoring platelet count is important for assessing the risk of bleeding or clotting disorders but is not specific to heparin therapy. Monitoring sodium levels is not directly related to assessing the effectiveness or safety of heparin therapy.

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