Test items and reporting unit
Test items include prothrombin time（PT）, activated partial thromboplastin time (APTT), thrombin
time (TT), fibrinogen (FIB), clotting factor activity determination. The reporting unit of PT, APTT
and TT is second (S), hereinto PT shall also report ratio (PTR), international normalized ratio (INR)
and activity (PTA); the reporting unit of FIB is mg/dl；the reporting unit of clotting factor activity is
percentage（%）.