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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

APTT
(a.k.a Activated partial thromboplastin time)
minimum sample volume required ~ 2.7ml

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Tube type: 9NC

Special instructions
Citrate sample must be received in lab within 4hours.Ensure sample is filled to the marker near the top of tube. Time limit for add on = 6 hours Haemolysed samples should not be tested.

Reference range
Normal Range: 21.5-30.5, Therapeutic Range: 39-65

Units
Seconds

Linked to
Clotting screen

Turnaround Time
6 hours

Department: Haematology

Links:
» Paediatric normal ranges

 
 

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