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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. Please note that the etched fill indicator on the plastic citrate tubes indicates the minimum acceptable blood volume required for analysis. Time limit for add on = 6 hours. Haemolysed samples should not be tested.

Please note that this test is not accredited to ISO:15189 due to recent changes in equipment. This test has been verified internally and accreditation has been applied for.

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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