A nurse is caring for a client who is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?
Activated partial thromboplastin time (APTT)
Bleeding time
Prothrombin time (PT)
Hemoglobin (Hgb)
The Correct Answer is C
warfarin inhibits vitamin K epoxide reductase interfering with the synthesis of vitamin K dependent clotting factors (II, VII, IX, and X). This prolongs the prothrombin time, expressed in the form of INR international normalized ratio. Monitoring of INR helps to ensure that the prescribed dosages are within the therapeutic levels without increasing the risk of bleeding. The target INR range is between 2.5 and 3.5.
A. Used to monitor heparin therapy
B, D- not used for monitoring
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale- Glipizide is an oral hypoglycemic agent. It belongs to a class of drugs referred to as sulfonyl ureas. It acts on the beta cells of the pancreases to stimulate release of insulin. This helps the body in lowering blood glucose levels appropriately.
A. Glipizide help in lowering blood sugars after carbohydrate metabolism, it does not directly absorb excess carbohydrates in the system.
B. Glipizide has no effect on the liver
D. Glipizide stimulates the pancreas to release more insulin but not to replace- it is not an insulin
Correct Answer is B
Explanation
Sim’s position places the lower gastrointestinal tract in the anatomical position allowing for the client's comfort as well as retention of the suppository once inserted. is the most appropriate position for the insertion of a rectal suppository. The client lies on the left lateral side with the lower arm positioned behind the body, and the upper thigh flexed.
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