Prothrombin INR
Interpretation
Reference Range
| Female | Male | ||
|---|---|---|---|
| Age | Range | Age | Range |
| 0- | 0.8-1.3 | 0- | 0.8-1.3 |
Effective date: 05/17/2010
Ref. Range Notes
Warfarin Therapy:
INR 2-3: stroke prevention
in atrial fibrillation; mechanical aortic valve replacement; prevention and
treatment of venous thromboembolism
INR 2.5-3.5:
mechanical mitral valve replacement; recurrent venous or arterial thrombosis
despite therapeutic anticoagulation
For more information, see
web link above labeled “UW Medicine Anticoagulation Service”
Ordering & Collection
Specimen Type
Collection
Processing
Performance
LIS Dept Code
Coagulation (COAG)