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
d. Prothrombin time.
Explanation:
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 C
Explanation
A) Coiling the tubing on the bed above the collection bag is incorrect because it can cause urine to flow back into the bladder, increasing the risk of infection and compromising the effectiveness of the drainage system. The tubing should be kept below the level of the bladder to ensure proper drainage.
B) Instructing the client to hold the drainage bag at waist height when ambulating is incorrect because the drainage bag should always be kept below the level of the bladder to prevent urine from flowing back into the bladder, which could lead to a urinary tract infection (UTI).
C) Securing the tubing with adhesive tape to the lower abdomen is correct because it helps prevent accidental pulling or tugging on the catheter, which could cause discomfort or dislodgement. Properly securing the tubing also helps maintain a continuous flow of urine and reduces the risk of infection.
D) Collecting a sterile specimen from the urinary drainage bag is incorrect because urine in the drainage bag is not considered sterile. If a sterile specimen is needed, it should be obtained by cleaning the catheter's sampling port with an antiseptic solution and withdrawing urine directly from the port using a sterile syringe.
Correct Answer is C
Explanation
Choice A Reason:
Blaming the assistive personnel without additional information or evidence may not be appropriate and should be investigated further.
Choice B Reason:
Mentioning that an incident report has been completed and sent to risk management is important for institutional record-keeping and follow-up but does not provide details about the incident itself.
Choice C Reason:
"Client stated, 'I lost my balance and fell when I got out of bed to go to the bathroom'." In the documentation of a client fall, it is important to include the client's own account of the incident, as this can provide valuable information about the circumstances surrounding the fall. Including direct quotes or statements from the client helps to accurately capture their perspective and can be useful for assessing the root causes of the fall and developing appropriate interventions to prevent future falls.
Choice D Reason:
Documenting that the client does not appear to have any injuries is relevant but does not provide information about the circumstances of the fall, which is important for a comprehensive understanding of the event.
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