The stem or our November 2022 Quick question asked, If you use the PT when no warfarin is being measured, how do you report the results? Our 51 participants responded as follows:
- Report both PT and INR: 34 [66%]
- Report PT/MRI ratio: 0
- Report PT only: 14 [27%]
- Report INR only: 4 [7%]
Answer 2 was an attempt to learn if any facility chooses to use the pre-INR reporting system. It appears this approach is no longer in use.
Although most reporting systems report both PT and INR, some of us stick with the principle that INR is only designed to monitor stable warfarin therapy, whereas PT in seconds should be used for all other applications. Conversely, a few of us report only the INR, perhaps on the principle that most providers are accustomed to making clinical decisions on this basis anyway. We look forward to some additional discussion on this topic from our participants.