Antithrombin Activity (LABCORP)

Test Code
99901000273


Alias/See Also
LAB311: Antithrombin III
LAB7322: Hypercoaguable Profile | LABCORP EAP: 015040


CPT Codes
85300x1

Preferred Specimen
LABCORP LAB: LT BLUE TOP-CITRATE (Frozen) Min Vol: 1


Other Acceptable Specimens
LABCORP LAB: NA CITRATE ALIQUOT: (Frozen) Min Vol: 1


Transport Temperature
Test Includes Total WBC plus relative (%) and absolute counts of all white blood cell types Specimen Whole blood Volume Tube fill capacity Minimum Volume 0.5 mL (500 µL for pediatric microtainer capillary tubes; fill tube to capacity.) Container Lavender-top (EDTA) tube Collection Invert tube 8 to 10 times immediately after tube is filled at the time of collection. Storage Instructions Maintain specimen at room temperature for 24 hours; refrigerate for 48 hours


Report Available
LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min



Last Updated: March 6, 2023


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.