Is there any difference between PTTK and PTT?! Clinically or anyway?!
PTT (Partial Thromboplastin Time) and APTT (Activated Partial Thromboplastin Time) are two medical tests which are used to represent and characterize blood coagulation. Both PTT (Partial Thromboplastin Time) and APTT (Activated Partial Thromboplastin Time) use partial prothrombin, a phospholipid and Both aPTT and PTT are beneficial in the diagnosis of bleeding disorders and blood coagulation problems. The major difference between APTT (Activated Partial Thromboplastin Time) and PTT (Partial Thromboplastin Time) is that an activator is added to APTT test to elevate the speed of the clotting time and to get results in a narrower reference range while no activator is added to a normal PTT test and so PTT is less sensitive to heparin therapy as compared to APTT.
Partial thromboplastin time (PTT) and activated partial thromboplastin time (aPTT) are used to test for the same functions; however, in aPTT, an activator is added that speeds up the clotting time and results in a narrower reference range. ... The reference range of the PTT is 60-70 seconds.