Anti-Thrombin III Activity

Centralized Core Laboratory:Hematology

Test ID/Workstation: AT3A3 ACOAG

Specimen Type: Blood

Tube Type: Blue top (sodium citrate) tube

Collection Volume: 2.7mL (minimum 1.8 mL)

Cause for rejection: Specimens which have visible hemolysis, are clotted, collected in the wrong tube, diluted with IV fluids, contamination with heparin, tubes that are over or under filled, specimens not kept on ice, or specimens received more than one hour post collection.

Storage: Frozen

Availability: Daily, 0700-1500

Methodology: Chromogenic Assay, BCSXP

Special Instructions: Specimens should be spun down & platelet poor plasma frozen if coming from an outside facility (plasma volume minimum 0.5 mL).

If collected at an offsite location, send by a STAT Courier to Hospital lab

Lab/Phone: 330-543-8418

TAT: 4 hours

Additional Info: Reference range:
1 day - 3 month: 39-87%
> 3 month: 88-135%

CPT Code: 85300

Requisition Form
View and print a requisition form for this test

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