Room Temperature - 10 Day(s)/Refrigerated - 10 Day(s)
Detects sequence variants in the GJB2 gene in patients with sensorineural non-syndromic hearing loss.
Please label each specimen tube with two forms of patient
identification. These forms of identification must also appear on the
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
DNA yields and quality are better in fresh specimens. However, when
necessary, most genetic tests are successful from DNA purified from
whole blood that is several days old.
8 mL (6 mL minimum) whole blood collected in two EDTA (lavender-top)
Pediatric (0-3 years): 2 mL (1 mL minimum)
Reported (Analytical Time)
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.
Physician Attestation of Informed Consent- This germline genetic test requires physician attestation that patient consent has been received.
Transport Temperature: Room temperature Reject Criteria: Gross hemolysis Methodology: Sanger Sequencing