And so begins the second year in Delhi, and the fourth year in India.

What is APT?

Activated partial thromboplastin time (aPTT) measures the intrinsic pathway

Purpose of Test

Prolonged APTT may indicate: use of heparin (or contamination of the sample) antiphospholipid antibody (especially lupus anticoagulant, which paradoxically increases propensity to thrombosis) coagulation factor deficiency (e.g. hemophilia).

Test of Result Interpretation

28-34 sec.


No preparation required

Turnaround Time