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HelpTest Code LAB12441 Antithrombin III Antigen
Department
SEND OUTS
Reference Lab Test Number
AT3AG
Collection Requirements
Draw blood in a light blue 3.2% sodium citrate tube.
Refer To
Primary Collection Container
Blue 2.7 mL (Citrate)
Transport
Plasma Frozen
Preferred Transport Temperature
Frozen
Processing
CRITICAL FROZEN.
Send 1.0 mL plasma in a screw-capped plastic vial.
Stability
Ambient: 8 hours
Refrigerated: unacceptable
Frozen: 1 month
Minimum Testing Volume
0.5 mL
Reference Range
80-120%
Methodology
Latex Immunoassay
Performed
Monday – Friday
Reported
4 days
CPT Codes
-85301
Unacceptable Conditions
Hemolyzed samples.
Thawed samples.