1. Point-of-Care vs Laboratory INR Testing to Optimize Anticoagulation Management

3. Warfarin Use and Prothrombin Time Testing

4. PT Testing

5. PT Standardization

6. Differences Between POCT and Laboratory INR Testing

7. Potential Sources of Error for Any Lab Test

8. Interference Limitations With INR

9. Variability of Lab INR

10. Advantages of POCT

11. In Support of PST

12. INR Measurements With POC Device Demonstrate Accuracy in Clinic Study

13. POCT and Lab Results Are NOT an "Apples to Apples" Comparison

14. Who Is Correct?

15. Manufacturer Regulation

16. ScenarioPatient Blood Sent to 5 Laboratories

17. Local Example of INR Performance PST vs Laboratory

18. How to Compare INR Results?

19. Everyone Has an Equal Role

20. MGH Standardized Patient Assessment for INRs ≥ 5

21. How to Address Variability Between POC and Lab INRs

22. Calibration Standardization Requirements

23. Managing Anticoagulation Needs Based on POC INR Test Values

24. POC INR Testing

25. Precision vs Accuracy

26. Thrombotic and Hemorrhagic Reserve for a Patient With a Target INR of 3.0

27. Conclusion

28. Abbreviations

29. Abbreviations (cont)