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Mutation analysis of Connexin 26 gene and testing of common … see more Mutation analysis of Connexin 26 gene and testing of common deletions in Connexin 30 gene  see less
Clinical Genetic Test
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offered by
Diagnostics Division
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GTR Test Accession: Help GTR000529595.1
INHERITED DISEASEEAR, NOSE, THROATNERVOUS SYSTEM ... View more
Last updated in GTR: 2016-02-22
View version history
Last annual review date for the lab: 2021-11-11 Past due LinkOut
At a Glance
Test purpose: Help
Diagnosis
Conditions (4): Help
Nonsyndromic Hearing Loss and Deafness, Autosomal Recessive; Autosomal recessive nonsyndromic hearing loss 1A; Autosomal recessive nonsyndromic hearing loss 1B; ...
Genes (2): Help
GJB2 (13q12.11), GJB6 (13q12.11)
Methods (1): Help
Molecular Genetics - Sequence analysis of select exons: Bi-directional Sanger Sequence Analysis
Target population: Help
Not provided
Clinical validity: Help
Not provided
Clinical utility: Help
Not provided
Ordering Information
Offered by: Help
Diagnostics Division
View lab's website
View lab's test page
Specimen Source: Help
  • Amniocytes
  • Amniotic fluid
  • Chorionic villi
  • Cord blood
  • Dried blood spot (DBS) card
  • Fetal blood
  • Fibroblasts
  • Isolated DNA
  • Peripheral (whole) blood
  • Plasma
  • View specimen requirements
Who can order: Help
  • Genetic Counselor
  • Health Care Provider
  • Licensed Physician
  • Physician Assistant
Test Order Code: Help
FDDEF1
Contact Policy: Help
Laboratory can only accept contact from health care providers. Patients/families are encouraged to discuss genetic testing options with their health care provider.
How to Order: Help
Order URL
Informed consent required: Help
Based on applicable state law
Pre-test genetic counseling required: Help
Decline to answer
Post-test genetic counseling required: Help
Decline to answer
Recommended fields not provided:
Lab contact for this test, Test strategy, Test development
Conditions Help
Total conditions: 4
Condition/Phenotype Identifier
Test Targets
Genes Help
Total genes: 2
Gene Associated Condition Germline or Somatic Allele (Lab-provided) Variant in NCBI
Methodology
Total methods: 1
Method Category Help
Test method Help
Instrument *
Sequence analysis of select exons
Bi-directional Sanger Sequence Analysis
* Instrument: Not provided
Clinical Information
Test purpose: Help
Diagnosis
Recommended fields not provided:
Clinical validity, Clinical utility, Target population, What is the protocol for interpreting a variation as a VUS?, Are family members with defined clinical status recruited to assess significance of VUS without charge?, Will the lab re-contact the ordering physician if variant interpretation changes?, Is research allowed on the sample after clinical testing is complete?, Sample negative report, Sample positive report
Technical Information
Availability: Help
Tests performed
Entire test performed in-house
Analytical Validity: Help
greater than 99%
Proficiency testing (PT):
Is proficiency testing performed for this test? Help
No
Recommended fields not provided:
Test Confirmation, Assay limitations, Description of internal test validation method, Citations for Analytical validity, PT Provider, Description of PT method, Major CAP category, CAP category, CAP test list
Regulatory Approval
FDA Review: Help
Not provided
Additional Information
Consumer resources:

IMPORTANT NOTE: NIH does not independently verify information submitted to GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.