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
The shoulder harnesses of the car seat should be positioned at or slightly below the level of the infant's shoulders. This helps secure the infant properly in the car seat and provides appropriate protection in the event of a crash.
Car seats for infants should not be positioned at a 90° angle. Instead, they should be installed at a reclined angle, as recommended by the car seat manufacturer. The specific recline angle can vary depending on the car seat model and the age of the child.
Additional cushions or support devices should not be placed in the car seat unless specifically recommended by the car seat manufacturer. Extra padding or cushions can interfere with the proper fit of the harness and compromise the safety of the infant.
It is not safe to have an infant's car seat in the front seat if there is an active airbag. The safest place for an infant's car seat is in the rear seat, preferably in the middle position. If the car does not have a rear seat, it is important to disable the airbag if the car seat must be placed in the front seat.
Correct Answer is A
Explanation
The correct answer is: a. Temperature 38.8° C (101.8° F)
Title: Choice A reason: A temperature of 38.8° C (101.8° F) is indicative of a fever, which is a common symptom of a hemolytic transfusion reaction. During such a reaction, the immune system attacks the transfused red blood cells, leading to their destruction and the release of substances that can cause a rise in body temperature.
Title: Choice B reason: Straw-colored urine is not typically associated with a hemolytic transfusion reaction. Hemolytic reactions often result in darker urine due to the presence of free hemoglobin released from destroyed red blood cells.
Title: Choice C reason: An apical pulse rate of 58/min is considered bradycardia if it is lower than the normal resting heart rate for adults, which ranges from 60 to 100 beats per minute. Bradycardia is not a direct indicator of a hemolytic transfusion reaction.
Title: Choice D reason: Elevated blood pressure, such as 158/92 mm Hg, can be a sign of various conditions but is not a specific indicator of a hemolytic transfusion reaction. The symptoms of such a reaction are more directly related to the destruction of red blood cells and the body’s response to it.
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