Nursing Elites

1. A client is admitted with deep vein thrombosis (DVT) and is receiving heparin therapy. What is the most important laboratory value to monitor during heparin therapy?

• A. Prothrombin time (PT)
• B. International normalized ratio (INR)
• C. Activated partial thromboplastin time (aPTT)
• D. Platelet count

Correct answer: C

Rationale: The activated partial thromboplastin time (aPTT) is the most important laboratory value to monitor during heparin therapy. It measures the intrinsic pathway of coagulation and is used to assess the effectiveness of heparin as an anticoagulant. Keeping the aPTT within the therapeutic range is crucial to prevent complications such as bleeding or clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, not heparin. Platelet count is important to assess for thrombocytopenia, a potential side effect of heparin, but it is not the primary laboratory value to monitor the effectiveness of heparin therapy.

2. A client with heart failure is prescribed digoxin and reports nausea. What is the nurse's first action?

• A. Administer an anti-nausea medication as prescribed.
• B. Assess the client's digoxin level immediately.
• C. Assess the client’s apical pulse and hold the next dose if it's below 60 bpm.
• D. Instruct the client to reduce their fluid intake.

Correct answer: B

Rationale: When a client on digoxin reports nausea, it can be a sign of digoxin toxicity. The priority action for the nurse is to assess the client's digoxin level immediately. This assessment will help determine if the nausea is related to digoxin toxicity, requiring a dosage adjustment. Administering an anti-nausea medication (Choice A) does not address the underlying issue of potential digoxin toxicity. Assessing the client's apical pulse (Choice C) is important in general digoxin monitoring but not the first action when nausea is reported. Instructing the client to reduce fluid intake (Choice D) is not the initial response to nausea in a client taking digoxin.

3. A client with a ruptured spleen underwent an emergency splenectomy. Twelve hours later, the client’s urine output is 25 ml/hour. What is the most likely cause?

• A. This is a normal finding after surgery.
• B. Oliguria signals tubular necrosis related to hypoperfusion.
• C. Oliguria signals dehydration and fluid loss.
• D. Urine output of 25 ml/hour is an expected finding after splenectomy.

Correct answer: B

Rationale: Oliguria, or decreased urine output, after surgery can indicate tubular necrosis due to hypoperfusion, which may require intervention to restore renal function. Choice A is incorrect as oliguria is not a normal finding after surgery. Choice C is incorrect because dehydration is less likely in this context compared to tubular necrosis. Choice D is incorrect as a urine output of 25 ml/hour is not expected after splenectomy and should raise concern for renal impairment.

4. A client with chronic kidney disease is admitted with complaints of fatigue and swelling in the lower extremities. What laboratory finding is most important for the nurse to report?

• A. Serum creatinine level of 2.0 mg/dL.
• B. Hemoglobin level of 8 g/dL.
• C. Potassium level of 5.6 mEq/L.
• D. Blood urea nitrogen (BUN) level of 25 mg/dL.

Correct answer: B

Rationale: The correct answer is B. A hemoglobin level of 8 g/dL suggests anemia, which commonly occurs in clients with chronic kidney disease and requires prompt intervention. Reporting this finding is crucial to address the anemic condition. Choices A, C, and D are important in the context of chronic kidney disease but do not directly relate to the symptoms of fatigue and swelling in the lower extremities described in the scenario.

5. A client recently started on warfarin therapy. What laboratory value is most important to monitor for this client?

• A. Platelet count
• B. Prothrombin time (PT)
• C. Creatinine level
• D. Blood urea nitrogen (BUN)

Correct answer: B

Rationale: Prothrombin time (PT) is the most important laboratory value to monitor for clients on warfarin therapy. PT helps determine how long it takes blood to clot and ensures the warfarin dose is within the therapeutic range to prevent either excessive bleeding or clotting. Monitoring platelet count is important for assessing the risk of bleeding, but PT is more specific to warfarin therapy. Creatinine level and BUN are indicators of kidney function and are not directly related to warfarin therapy.

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