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.
Submit With Order
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 NameLOINC
0050202IA-2 Antibody31209-0
* 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
  • 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