Question 39 · LEK · Atrial fibrillation
In patients with atrial fibrillation, after stabilization of the dose of vitamin K antagonists (acenocoumarol, warfarin), control INR tests should be performed every:
- A. 2 weeks.
- B. 4 weeks.
- C. 6 weeks.
- D. 8 weeks.
- E. 12 weeks.
Hint
Once INR is stable within range, monitoring intervals are lengthened but in standard practice remain roughly monthly.
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