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 D
Explanation
Waiting 1 minute between suctioning attempts allows the client to recover and ensures that the procedure is not overly invasive. It also helps to prevent the client from becoming hypoxic.
The distance that the nasopharyngeal catheter should be inserted varies from person to person and therefore 10 cm is not standard.
During nasopharyngeal suctioning, the nurse should apply suction intermittently while withdrawing the catheter, not during insertion. Applying suction during insertion can cause tissue damage and increase the risk of trauma.
The nurse should also apply intermittent suction for no longer than 15 seconds to prevent hypoxia and damage to the mucosal lining. Suctioning for an extended period can cause discomfort and harm to the client.
Correct Answer is C
Explanation
Diminished pulses on the affected extremity. This finding may indicate compromised circulation, which is
a serious complication that requires immediate intervention.
Option a. Ecchymosis on the inner left thigh may be a concerning finding, but it is not as urgent as diminished pulses. Ecchymosis may be a result of trauma during cast application and may resolve on its own.
Option b. One fingerbreadth of space between the cast and the skin is a normal finding and indicates that the cast is not too tight.
Option d. Client report of muscle spasms of the left leg is a common complaint in clients with casts and may
be addressed with medication or other interventions, but it is not as urgent as diminished pulses.
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