CPT Code(s):
- 88346 x5 IgG
- IgM
- IgA
- C3
- Fibrinogen
Specimen Requirements:
Skin biopsy tissue prepared in Michel’s fixative
To obtain DIF kits and/or Michel’s fixative, contact UF Health Pathology Laboratories’ Client Services Department at 888.375.LABS (5227).
Unacceptable Conditions:
- Formalin-fixed tissue
- Tissue in neutral-buffered formalin
- Frozen tissue
Stability (collection to initiation of testing):
- Ambient: 10 days
- Refrigerated: 10 days
- Frozen: Unacceptable
Use:
This test is used to detect antibody deposition in tissue. Used in diagnosis of Bullous Disease.
Methodology:
Direct immunofluorescence
Reported:
5 – 7 days