Thrombospondin Type 1 Domain Containing 7A (THSD7A), Immunofluorescence

Test Code

13953

CPT Codes
86255<br>Restricted Client Code

Preferred Specimen

2 unstained positively charged glass slides (25- x 75- x 1-mm) per test ordered; paraffin sections 3 to 4-microns thick, from kidney tissue

Other Acceptable Specimens

Formalin-fixed, paraffin-embedded (FFPE) kidney tissue

Transport Temperature

Room temperature

Specimen Stability

Room temperature: Indefinitely
Refrigerated: Indefinitely
Frozen: Indefinitely

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability

Methodology
Direct Immunofluorescence Assay

FDA Status
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.

Setup Schedule

Set up: Mon-Fri; Report available: 1-2 days

Reference Range

See Laboratory Report

Clinical Significance

Diagnosis of thrombospondin type 1 domain-containing 7A (THSD7A)-associated membranous nephropathy.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.