IA-2 Antibody
0050202
 
Ordering Recommendation
Not recommended in routine evaluation or management of diabetes mellitus (DM). Glutamic Acid Decarboxylase Antibody (GAD) (2001771) and IA-2 Antibody (insulinoma antigen 2) recommended for initial screening of suspected cases of type 1 DM.
Mnemonic
IA-2
Methodology
Quantitative Radioimmunoassay
Performed
Mon, Fri
Reported
2-10 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Serum separator tube or plain red.  
Specimen Preparation
Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.1 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Plasma. Hemolyzed or lipemic specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 2 months  
Reference Interval
0.0-0.8 Kronus Units/mL
Interpretive Data
A value greater than 0.8 Kronus Units/mL is considered positive for IA-2 Antibodies.
Kronus Units are arbitrary. Kronus Units = U/mL
Note
CPT Code(s)
86341
Components
Component Test Code*Component Chart Name
0050202IA-2 Antibody
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • Anti-IA2 Antibodies
  • IA-2
  • ICA-512
  • Islet Antigen 2
  • Islet Cell Antibody
  • Islet Cell Antigen (ICA) 512
  • Tyrosine Phosphatase-Like Protein Antibodies
  • tyrosine phosphatase-related islet antigen 2