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HelpTest ID BLOD0124 Cutaneous Immunofluorescence Antibodies, IgG and IgG4, Serum
Useful For
Confirming the presence of IgG and/or IgG4 antibodies to diagnose pemphigoid, pemphigus, epidermolysis bullosa acquisita, or bullous lupus erythematosus
Specimen Type
SerumSpecimen Required
Collection Container/Tube:
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 2 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial.
Specimen Minimum Volume
0.5 mL
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 14 days |
| Frozen | 30 days | |
| Ambient | 14 days |
Day(s) Performed
Monday through Friday
Method Name
Indirect Immunofluorescence Assay (IFA)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
88346
88350
88350 (if appropriate)
Secondary ID
8052Reporting Name
Cutaneous Immfluor. Ab, IgG/IgG4, SReference Values
Negative in normal individuals
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.Report Available
2 to 7 daysReflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CIFST | CIFS Titer, IgG, S | No | No |
Testing Algorithm
If IgG anti-cell surface or anti-basement membrane zone antibodies are present, then the IgG antibody titer will be reflexed and performed at an additional charge.