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
Prothrombin time.
Explanation:
When a client is prescribed warfarin, monitoring the prothrombin time (PT) and the International Normalized Ratio (INR) is crucial. Warfarin is an anticoagulant medication that affects the clotting ability of the blood by inhibiting vitamin K-dependent clotting factors. Monitoring the prothrombin time and INR helps determine the client's blood's ability to clot and the appropriate dosage of warfarin to maintain the desired 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
a. Memory loss that disrupts ADLs
Explanation: Dementia is a condition characterized by a decline in cognitive function that affects a person's ability to perform activities of daily living (ADLs). Memory loss is a common symptom of dementia, particularly in the early stages. The memory loss can disrupt a person's ability to carry out tasks they were previously able to do independently, such as dressing, bathing, and eating. Therefore, option a is the correct answer.
Option b, catatonia, is a condition characterized by a lack of movement or activity, which is not typically associated with dementia.
Option c, illusions, involve a misinterpretation of sensory information and may occur in some forms of dementia but are not a defining feature.
Option d, pressured speech, is a symptom commonly associated with mania or bipolar disorder, but is not typically seen in dementia.

Correct Answer is D
Explanation
a.This is not recommended. The central tip of the finger is more sensitive and has more nerve endings, which can cause more pain. The recommended site for blood glucose testing is the side of the fingertip, as it is less sensitive and provides an adequate blood sample.
b. While it is not necessary to wear sterile gloves for routine capillary blood glucose monitoring, it is important to ensure that the nurse's hands are clean. Wearing clean gloves helps maintain infection control practices.
c. After puncturing the selected site, the nurse should gently squeeze the finger to create a small drop of blood. The first drop of blood should be wiped away, and subsequent drops should be used for the glucose test. This ensures that the sample is fresh and not contaminated with tissue fluid.
d.Keeping the finger in a dependent position (hanging down) helps improve blood flow to the fingertip, making it easier to obtain a sufficient blood sample. This can help ensure an accurate glucose reading.
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