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Test Mnemonic SUBIF IGG Subtypes Immunofluorescence, (IGG1, IGG2, IGG3, IGG4), Tissue


Advisory Information


This test will report as Negative to 3+.

 

If additional interpretation/analysis is needed, request PATHC/ Pathology Consultation along with this test and send the corresponding renal pathology light microscopy and immunofluorescence (IF) slides (or IF images on a CD), electron microscopy images (prints or CD), and the pathology report.



Shipping Instructions


1. Advise shipping specimens in Styrofoam transportation coolers to avoid extreme hot or cold temperatures to ensure specimens are received at required specimen stability temperature.

2. Attach the green pathology address label included in the kit to the outside of the transport container.



Necessary Information


A pathology/diagnostic report is required.



Specimen Required


Supplies: Renal Biopsy Kit (T231)

Specimen Type: Kidney tissue

Container/Tube: Renal Biopsy Kit (T231), Zeus/Michel's, Frozen

Preferred: Frozen

Acceptable: 4 frozen tissue unstained positively charged glass slides (25 x 75 x 1 mm) per test ordered; sections 4-microns thick.

Specimen Volume: Entire specimen

Collection Instructions: Collect specimens according to the instructions in Renal Biopsy-Procedures of Handling Tissue for Light Microscopy, Immunohistology, and Electron Microscopy in Special Instructions.

Additional Information: If standard immunoglobulin and complement immunofluorescence has already been performed, submit the residual frozen tissue (must contain glomeruli) on dry ice.


Forms

1. Renal Biopsy Patient Information in Special Instructions

2. If not ordering electronically, complete, print, and send a Pathology Test Request Form (T246) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/pathology-request-form.pdf)

Useful For

Determining the subclass of IgG antibody found in renal immunofluorescent panel and determining if the deposits are monoclonal or monotypic

Method Name

Direct Immunofluorescence on Fresh/Frozen Tissue

Reporting Name

IGG Subtypes Immunofluorescence

Specimen Type

Special

Specimen Stability Information

Specimen Type Temperature Time
Special Frozen (preferred)
  Ambient 
  Refrigerated 

Day(s) and Time(s) Performed

Monday through Friday

Performing Laboratory

Mayo Medical Laboratories in Rochester

Test Classification

This test uses a standard method. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

88346-primary IF

88350-if additional IF

LOINC Code Information

Test ID Test Order Name Order LOINC Value
SUBIF IGG Subtypes Immunofluorescence In Process

 

Result ID Test Result Name Result LOINC Value
BA0271 Interpretation In Process
BA0272 Participated in the Interpretation In Process
BA0275 Report electronically signed by In Process
BA0276 Addendum In Process
BA0274 Gross Description In Process
BA0273 Material Received In Process
71618 Disclaimer 62364-5
71850 Case Number In Process