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 B
Explanation
People with SLE are often sensitive to sunlight and should take precautions to protect their skin. Limiting time in the tanning bed is important because exposure to ultraviolet (UV) light can trigger or worsen symptoms of SLE. Using an astringent on the face and cleansing with an antibacterial soap may not be recommended for individuals with SLE, as these products can be harsh on the skin and may cause irritation. However, patting the skin dry with a towel is a gentle and appropriate method to dry the skin without causing unnecessary friction or irritation.
Correct Answer is B
Explanation
A.Pinpoint pupils are more commonly associated with opioid intoxication or damage to the pons rather than increased intracranial pressure (ICP). Increased ICP typically causes pupils to become dilated and sluggish or nonreactive to light
B.Irritability can be an early sign of increased intracranial pressure. As pressure within the skull rises, it can affect the brain's ability to function normally, leading to changes in behavior such as restlessness, agitation, or irritability.
C.Pallor is not directly associated with increased intracranial pressure. It might indicate other issues such as anemia or poor circulation, but it is not a specific sign of increased ICP.
D. Increased intracranial pressure typically leads to hypertension (increased blood pressure) as part of the Cushing's triad, which includes hypertension, bradycardia, and irregular respirations. Decreased blood pressure would not be a typical finding associated with increased ICP.
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