Activated Partial Thromboplastin Time Ratio (APTR)
(Haematology)
Investigation : Activated Partial Thromboplastin Time Ratio (APTR)
Spec container : Citrate 
Volume required : 3.5 ml
Reference range : 1.8 - 3.3
Turnaround : <4 hours

Sample Requirements
The sample must be received within the laboratory within 4 hours of collection. If the sample cannot reach the laboratory within 4 hours the sample must be centrifuged (3000g for 10 minutes) and separated and frozen


APTT ratio additional information

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