A nurse is providing discharge teaching about warfarin to a client who has deep- vein thrombosis.
The nurse should instruct the client to obtain which of the following laboratory tests monthly?
Platelet count.
aPTT.
Fibrinogen.
INR.
The Correct Answer is D

A client who has deep-vein thrombosis and is taking warfarin should obtain an International Normalized Ratio (INR) test monthly.
This blood test measures how fast the blood clots and helps the healthcare provider determine if the client is taking the right dose of warfarin to keep them safe from bleeding and making clots.
Choice A is wrong because Platelet count, is not the correct answer because it measures the number of platelets in the blood and is not specifically related to warfarin therapy.
Choice B is wrong because aPTT, is not the correct answer because it measures the time it takes for blood to clot and is used to monitor heparin therapy, not warfarin therapy.
Choice C is wrong because Fibrinogen, is not the correct answer because it measures the amount of fibrinogen in the blood and is not specifically related to warfarin therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The nurse should administer the medication over 2 hr because amphotericin B lipid complex should be infused slowly intravenously.
Choice B is wrong because priming the tubing with 0.9% sodium chloride is not mentioned as a necessary action when administering amphotericin B lipid complex via intermittent IV bolus.
Choice C is wrong because discarding the medication if it is yellow is not mentioned as a necessary action when administering amphotericin B lipid complex via intermittent IV bolus.
Choice D is wrong because a gravity flow set is not mentioned as a necessary action when administering amphotericin B lipid complex via intermittent IV bolus.
Correct Answer is C
Explanation
First, convert the client’s weight from pounds to kilograms: 121 lb /.2 = 55 kg. Then, calculate the dose in mg: 1 mg/kg * 55 kg = 55 mg.
Finally, use the ratio of available enoxaparin to calculate the volume to administer: (55 mg / 60 mg) * 0.6 mL = 0.55 mL.
Rounded to the nearest tenth, this is 0.6 mL.
Choice A is wrong because it is less than the calculated dose of 0.6 mL.
Choice B is wrong because it is equal to the calculated dose of 0.6 mL but not rounded to the nearest tenth.
Choice D is wrong because it is greater than the calculated dose of 0.6 mL.
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