Ordering Recommendation
Not recommended as an initial test to detect antithrombin (AT) deficiency. Use to determine subtype in AT-deficient individuals.
Mnemonic
AT3AG
Methodology
Microlatex Particle-Mediated Immunoassay
Performed
Sun-Sat
Reported
1-2 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.
Specimen Preparation
Transfer 1 mL platelet-poor plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport Temperature
CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Unacceptable Conditions
Serum. EDTA plasma, clotted or hemolyzed specimens.
Remarks
Stability
Ambient: 8 hours; Refrigerated: Unacceptable; Frozen: 1 month
Reference Interval
82-136%
Interpretive Data
Compliance Category
FDA
Note
Hotline History
N/A
CPT Codes
85301
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0030015 | Antithrombin Antigen | 27812-7 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Antithrombin III Antigen
- Antithrombin III, Immunologic, Plasma
- AT III Antigen
- AT III Antigen/Immunologic
- AT3 Antigen/Immunologic
Antithrombin, Antigen