Multiple choice

In a patient on anticoagulant therapy, INR is maintained at

  1. 1.5 to 2.5 times the normal

  2. 2.5 to 3.0 times the normal

  3. 4.5 to 5.0 times the normal

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For most patients on long-term oral anticoagulant therapy (like warfarin), the target INR is typically between 2.0 and 3.0. Option A (1.5 to 2.5) is a common lower-range target or historical reference, but 2.0-3.0 is the standard therapeutic range.

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