– PT: Prothrombin Time – Time needed for blood to coagulate/clot ; provides a benchmark for efficacy of warfarin therapy (Coumadin). Not used as much as INR is used to measure warfarin effectiveness. 🩸Expected Range: Not on warfarin therapy: 10-14 seconds On warfarin therapy: 1.5-2x the original value – INR: International Normalized Ratio – A number derived FROM the PT (this is SO important to know!) ; provides benchmark for efficacy of warfarin therapy (Coumadin) ⭐INR is more widely used for t

PT and INR are the same test , just reported differently. We are assessing how fast you coagulate . Specifically or pacifically if you are East coast (Australia) or West coast Americas 😉, your capacity to stop bleeding when you’re injured (Extrinsic pathway) Don’t confuse it with aPTT used to assess heparinisation and the intrinsic pathway. Bonus if you get to the end of this 1 min video. | ECT4Health- Nurse/Paramedic Education