A nurse is caring for a client who has a prescription for warfarin. Which of the following laboratory tests should the nurse monitor?
Triiodothyronine
Blood urea nitrogen
Arterial blood gases
Prothrombin time
The Correct Answer is D
Warfarin is an anticoagulant medication that works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver. Therefore, it is important to monitor the client's clotting ability to ensure that the medication is working properly and not causing any adverse effects. The laboratory test that is used to monitor warfarin therapy is the prothrombin time (PT), which measures the time it takes for the blood to clot. The nurse should monitor the client's PT regularly and adjust the dosage of warfarin as necessary to maintain the therapeutic range. Option a (Triiodothyronine) is a thyroid hormone and is not directly related to warfarin therapy. Option b (Blood urea nitrogen) is a measure of kidney function and is also not directly related to warfarin therapy. Option c (Arterial blood gases) is a measure of oxygen and carbon dioxide levels in the blood and is not related to warfarin therapy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The client should choose a clean, dry, hairless area of skin to apply the patch. It is important to rotate the application site to avoid skin irritation and ensure consistent drug absorption. The patch should be replaced every 24 hours, not every 12 hours. If the client experiences a headache, it is not necessary to remove the patch, as headaches can be a common side effect of nitroglycerin use. Applying the patch in the same place every day can lead to skin irritation and decreased absorption.
Correct Answer is A
Explanation
Hyperactive bowel sounds are bowel sounds that are louder and more frequent than normal. They may be heard as high-pitched rushing or tinkling sounds that occur irregularly at a rate greater than 5-6 sounds per minute. They are often associated with increased intestinal motility, such as diarrhea, gastroenteritis, or early bowel obstruction.
Option b is incorrect because hyperactive bowel sounds are not typically associated with a paralytic ileus, which is a condition where the bowel stops working and there is a lack of bowel sounds.
Option c is incorrect because hyperactive bowel sounds indicate increased motility, not decreased motility.
Option d is incorrect because soft bowel sounds at a rate of 1/min are considered hypoactive bowel sounds, which can be a sign of decreased intestinal motility, as seen in constipation or postoperative ileus.
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