aPTT
- Test Code
- CT395
- Results:
- Daily.
- Specimen
- 0.5 mL citrated plasma in non-additive transport tube.
- Test Description
- Activated Partial Thromboplastin Time (aPTT)
aPTT measures the integrity of the intrinsic and common components of the coagulation cascade.
Interferences: Marked hemolysis and lipemia. Partially full blue top tube may falsely increase sample’s coagulation time.
Note: Clotting of the sample may preclude the analysis. The blue top tube needs to be filled to 2/3 or more of its capacity.