0092057
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Basement Membrane Zone (Epithelial) Antibodies, IgA by IIF

EBMZ IGA
Example Reports
Enhanced Report
Negative
Positive

Ordering Recommendation

Use to assess and monitor IgA basement membrane zone antibodies in patients with linear IgA disease, including linear IgA bullous dermatosis and chronic bullous disease of childhood, and IgA variant epidermolysis bullosa acquisita (EBA). Testing should be correlated with concurrent Direct Immunofluorescence, Tissue Biopsy (Cutaneous, Mucosal, Epithelial) (0092572). 

For initial linear IgA disease diagnosis, serum Basement Membrane Zone Antibody Panel (3001410) or Immunobullous Disease Antibody Panel (3001409) is preferred and offers a more comprehensive evaluation.

For more information about components, methodology, and specimen type, see the ARUP Immunobullous Disease Testing Comparison tool.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Plain red or serum separator tube (SST).

Specimen Preparation

Transfer 2 mL serum to an ARUP standard transport tube. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated: Ambient

Unacceptable Conditions

Hemolyzed or lipemic specimens. Plasma.

Remarks

As a general rule, serum specimens should be shipped to the laboratory as soon as possible.

Store refrigerated unless shipping promptly (within 2 hours). Transport at ambient temperature to arrive within 7 days. If 7-14 days until received in laboratory, store and ship refrigerated. If greater than 14 days, serum specimens must be stored and shipped frozen.

Stability

Ambient: 1 week; Refrigerated: 2 weeks; Frozen: Indefinitely

Methodology

Semi-Quantitative Indirect Immunofluorescence (IIF)

Performed

Varies

Reported

4-9 days

Reference Interval

By report

Interpretive Data

Refer to report

Compliance Category

Performed by non-ARUP Laboratory

Note

For specimens less than 0.5 mL, call the Immunodermatology Laboratory at 801-581-7139.

Hotline History

N/A

CPT Codes

88346; 88350

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Components

Component Test Code* Component Chart Name LOINC
0092057 Epithelial BMZ Ab, IgA
3004035 EER Epithelial BMZ Ab, IgA 38440-4
* 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

  • atypical epithelial antibody-associated disease
    basement membrane zone antibody-associated disease
    childhood immunobullous disease
    chronic bullous disease of childhood
    epithelial antibody-associated disease
    Epithelial Basement Membrane Zone Antibody IgA
    hemidesmosomal protein antibodies
    hemidesmosome antibodies
    IgA variant epidermolysis bullosa acquisita (EBA)
    IgG/IgA basement membrane zone antibodies
    immunobullous disease of childhood
    indirect fluorescence assay
    indirect fluorescent antibody (IFA)
    indirect immunofluorescent assay
    linear IgA bullous dermatosis
    linear IgA disease
    linear IgG/IgA bullous dermatosis
    mixed epithelial antibody-associated disease
    mixed immunobullous disease of childhood
    salt-split skin test
    subepithelial immunobullous disease
Basement Membrane Zone (Epithelial) Antibodies, IgA by IIF