When laboratory C was compared with the ProTime device, it was apparent that the two recombinant products with an ISI of approximately 1.0 did not yield INR values that were equivalent between ...

Thirteen patients with liver disease and an abnormal prothrombin time refractory to vitamin K therapy were studied (Tables 1 and 2). None of the patients were actively bleeding, and none had ...

and ProTime, International Technidyne, Edison, NJ) were included in the study. Both POC devices use whole blood from a single finger stick to determine the patient's PT and convert it to an INR.