Test Details
Mnemonic
AT3
Ordering Code
2501000
CPT-4 Code(s)
85300
Specimen Information
Collect
Light blue 3.2 % sodium citrate
Specimen Preparation
For complete instructions, see Coagulation Test Collection Guide found under Resources/Interpretation Guides and Forms. Send 1.0 mL platelet-poor plasma in a screw capped plastic vial. CRITICAL FROZEN.
Minimum Volume
0.5 mL
Transport Temperature
CRITICAL FROZEN
Rejection Criteria
Refrigerated, thawed or refrozen specimens, serum.
Stability
Room temperature: 8 hours
Refrigerated: Unacceptable
Frozen: 30 days
Refrigerated: Unacceptable
Frozen: 30 days
Methodology
Chromogenic
Reference Range
80 - 120%
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes