>I bet those tests are not cheap in the USA. Within 5 minutes of searching I found a PT time with INR test for $24 [0]. Add in the testing fee and it's probabl

>I bet those tests are not cheap in the USA. Within 5 minutes of searching I found a PT time with INR test for $24 [0]. Add in the testing fee and it's probably around $30. [0] https://www.ultalabtests.com/test/prothrombin-time-with-inr-test https://www.ultalabtests.com/test/prothrombin-time-with-inr-...