Endomysial Antibody, IgA by IFA
0050736
Ordering Recommendation
Do not use in IgA-deficient individuals; acceptable single screening test for celiac disease. Acceptable follow-up test for weakly positive or negative tissue transglutaminase (tTG) IgA screen. Celiac Disease Reflexive Cascade (2008114) or Tissue Transglutaminase (tTG) Antibody, IgA (0097709) testing is the preferred testing for screening at-risk patients for celiac disease who should undergo small bowel biopsy to confirm disease.
Mnemonic
EMAR TITER
Methodology
Semi-Quantitative Indirect Fluorescent Antibody
Performed
Mon-Fri
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube.  
Specimen Preparation
Separate serum from cells ASAP. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Plasma. Severely lipemic, contaminated, or hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid freeze/thaw cycles)  
Reference Interval
Less than 1:10  
Interpretive Data
The endomysial antigen has been identified as the protein cross-linking enzyme known as tissue transglutaminase.  
Note
 
CPT Code(s)
86256
Components
Component Test Code*Component Chart NameLOINC
0050736Endomysial Antibody, IgA Titer27038-9
* 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-Endomysial Antibodies
  • EMA
  • EMA IgA
  • Gluten-Sensitive Enteropathy Tests