The partial thromboplastin time (PTT) otherwise called as activated partial thromboplastin time (aPTT or APTT) is a medical screening test that characterizes blood coagulation, which is commonly referred as clotting of blood. This APTT screening test is also used to ensure whether the right dose of heparin is being used. The given below is the activated partial thromboplastin time normal range chart which shows you the APTT normal range for all ages.
The APTT in contrast to the PT, measures the activity of the intrinsic and common pathways of coagulation. The APTT is frequently performed as part of a series of screening tests that comprise the PT, APTT and often the thrombin time and an estimation of the fibrinogen concentration. APTT screening test ranges below mentioned.
| Test | Age | Reference Range |
|---|---|---|
| PT | All | 11-14s |
| APTT | All | 23-35s |
| Fibrinogen (Clauss) | All | 1.5-4.0g/L |
| Thrombin Time | All | 10-13s |
Refer the above activated partial thromboplastin time normal range chart and know the activated partial thromboplastin time normal ranges to categorize the blood coagulation.
