Activated Partial Thromboplastin Time

Test investigation

Activated Partial Thromboplastin Time

Laboratory offering test

JPUH, NNUH, QEH

Units

Seconds

Also known as/Frequency of test

APTT

Comments precautions

Routine coagulation test

Ideal sample age for accurate results maximum acceptable sample age

Within 8 hours/24 hours

Sample type

Citrate x 2

Turnaround times (TAT) Urgent/Routine/GP or OPD

1 hour/4 hours/8 hours

Reference intervals

0-014 days 35-52 015-029 days 27.6-45.6 030-175 days 24.8-40.7 176-365 days 25.1-40.7 1-5 years 24-39.2 6-10 years 26.9-38.7 11-17 years 24.6-38.4 18-999 years 24.1-38

If ukas accredited

Y NNUH