which lab value is critical for a patient on heparin therapy
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Nursing Elites

ATI RN

ATI RN Exit Exam

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

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.

2. 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?

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.

3. A nurse is teaching at a community health fair about electrical fire prevention. Which of the following information should the nurse include in the teaching?

Correct answer: A

Rationale: The correct answer is A: 'Use three-pronged grounded plugs.' This is important in preventing electrical fires as it provides a grounded connection, reducing the risk of electrical malfunctions. Choice B is incorrect because covering extension cords with a rug can lead to overheating and increase the risk of fire. Choice C is also incorrect as tingling sensations around a cord indicate an electrical hazard, not proper functioning. Choice D is incorrect as pulling the cord to remove a plug can damage the cord, leading to potential electrical dangers.

4. A nurse is reviewing the medical record of a client who has a prescription for spironolactone. Which of the following findings should the nurse report to the provider?

Correct answer: A

Rationale: A potassium level of 5.0 mEq/L is at the upper limit of normal and should be monitored closely in clients taking spironolactone, which is potassium-sparing. Elevated potassium levels can lead to hyperkalemia, especially in individuals on potassium-sparing diuretics like spironolactone. Monitoring and reporting high potassium levels are crucial to prevent potential complications such as cardiac arrhythmias. Blood pressure (choice B), sodium level (choice C), and calcium level (choice D) are not directly related to the use of spironolactone and do not require immediate reporting in this scenario.

5. What is the appropriate action for a healthcare provider to take when a patient has a high fever and is disoriented?

Correct answer: C

Rationale: Administering fluids is the appropriate action for a healthcare provider to take when a patient has a high fever and is disoriented. Dehydration can worsen confusion and other symptoms in such a situation. Administering acetaminophen or cooling the patient with cold compresses may help reduce the fever but does not address the underlying issue. Administering antibiotics is not indicated for a high fever and disorientation without knowing the cause.

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