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Questions and Answers
How is the International Normalized Ratio (INR) used in the context of anticoagulation therapy?
How is the International Normalized Ratio (INR) used in the context of anticoagulation therapy?
- To monitor white blood cell counts and detect infections in the circulatory system.
- To measure blood coagulation and determine the clotting rate affected by liver damage and Vitamin K levels. (correct)
- To assess the effectiveness of immunosuppressant medications in managing autoimmune disorders.
- To measure antibiotic levels in the blood and adjust the dosage accordingly.
What is the primary mechanism by which antibiotic medications interact with warfarin to increase the risk of major bleeding?
What is the primary mechanism by which antibiotic medications interact with warfarin to increase the risk of major bleeding?
- Stimulation of coagulation factors synthesis in the liver.
- Enhancement of platelet aggregation leading to clot formation.
- Disruption of intestinal flora that synthesize Vitamin K. (correct)
- Reduction of fibrinolysis process.
What is the preferred range of INR levels for a patient on anticoagulation therapy?
What is the preferred range of INR levels for a patient on anticoagulation therapy?
- Exactly 5
- Between 2 and 3 (correct)
- Greater than 4
- Less than 1
Which factor does the dose of warfarin aim to maintain within a target range?
Which factor does the dose of warfarin aim to maintain within a target range?
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In what way does the International Normalized Ratio (INR) differ from prothrombin time?
In what way does the International Normalized Ratio (INR) differ from prothrombin time?
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