INF2 DNA Sequencing Test

Test Code
716

Test Details


Test code: 716
Type of disorder: Hereditary Renal Glomerular Disorders
Disease(s) tested for: Focal Segmental Glomerulosclerosis
Genes Included: INF2
Profiles that contain this test:
Informed Consent Required: This test requires physician attestation that patient consent has been received

Technical Information


Clinical Significance: Detects sequence variants in the INF2 gene in patients with glomerulosclerosis, focal segmental. Patients exhibit moderate proteinuria during early adolescence or adulthood, renal insufficiency with progression to end stage renal disease, and a focal and a segmental glomerulosclerotic pattern of tissue injury.
Methodology: Sanger Sequencing
Reference Range: No sequence variation detected

CPT Coding


The CPT codes provided 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 payer being billed.

CPT: 81406(1)

Specimen Requirements


Please label each specimen tube with two forms of patient identification. These forms of identification must also appear on the requisition form.

Specimen Type: Whole blood
Specimen Stability: Room temperature: 10 days, Refrigerated: 10 days, Frozen: Unacceptable
Specimen Requirements: 8 mL (6 mL minimum) whole blood collected in two (lavender-top) EDTA tubes. Pediatric (0-3 years): 2 mL (1 mL minimum)
Instructions: Higher blood volumes ensure adequate DNA quantity, which varies with WBC, specimen condition, and need for confirmatory testing. Patients, 0-3 years have higher WBC, yielding more DNA per mL of blood

Shipping Considerations


Transport Temperature: Room temperature
Set-up/Analytic Time: 14-28 days

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