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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:
2.7 mL (minimum 1.8 mL) Must use appropriate sodium citrate tube based on volume of blood drawn (1.8 mL or 2.7 mL tube)
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, or specimens received more than 4 hours post collection.
Storage:
Ambient-Whole Blood
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 Whole blood by a STAT Courier to Akron Campus lab
Lab/Phone:
330-543-8418
TAT:
4 hours
Additional Info:
  • Reference range:
  • 1 day - 3 month: 39-87%
  • >= 4 month: 88-135%
  • CPT Code:
    85300
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