GTR Test Accession:
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GTR000592423.9
Last updated in GTR:
2024-05-21
View version history
GTR000592423.9,
last updated:
2024-05-21
GTR000592423.8,
last updated:
2023-11-06
GTR000592423.7,
last updated:
2023-01-31
GTR000592423.6,
last updated:
2022-08-02
GTR000592423.5,
last updated:
2022-02-06
GTR000592423.4,
last updated:
2021-03-10
GTR000592423.3,
last updated:
2021-02-16
GTR000592423.2,
last updated:
2021-02-15
GTR000592423.1,
registered in GTR:
2021-02-12
Last annual review date for the lab: 2024-01-30
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At a Glance
Methods (3):
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Molecular Genetics - Deletion/duplication analysis: Next-Generation (NGS)/Massively parallel sequencing (MPS); ...
Target population: Help
Pregnant women for whom amniocentesis has been determined to be …
Clinical validity:
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Not provided
Clinical utility:
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Not provided
Ordering Information
Offered by:
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Specimen Source:
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- Amniotic fluid
- Cell culture
- Chorionic villi
- Cord blood
- Fetal blood
- Isolated DNA
- View specimen requirements
Who can order: Help
- Genetic Counselor
- Health Care Provider
- Licensed Physician
Test Order Code:
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RPG001
View other test codes
View other test codes
CPT codes:
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Lab contact:
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Contact Policy:
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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:
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IriSightTM Prenatal Analysis - Proband orders are initiated at https://www.variantyx.com/resources/provider-resources/order-forms/. Following submission, a clinical coordinator will get in touch to facilitate collection of the sample, test requisition and informed consent forms.
Order URL
Order URL
Informed consent required:
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Yes
Pre-test genetic counseling required:
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Decline to answer
Post-test genetic counseling required:
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Decline to answer
Recommended fields not provided:
Test strategy,
Test development
Conditions
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Total conditions: 1
Condition/Phenotype | Identifier |
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Test Targets
Chromosomal regions/Mitochondria
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Total chromosomal regions/mitochondria: 2
Chromosomal region/Mitochondrion | Associated condition |
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Methodology
Total methods: 3
Method Category
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Test method
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Instrument *
Deletion/duplication analysis
Next-Generation (NGS)/Massively parallel sequencing (MPS)
Mutation scanning of select exons
Next-Generation (NGS)/Massively parallel sequencing (MPS)
Sequence analysis of the entire coding region
Next-Generation (NGS)/Massively parallel sequencing (MPS)
* Instrument: Not provided
Clinical Information
Test purpose:
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Diagnosis
Target population:
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Pregnant women for whom amniocentesis has been determined to be medically necessary due to ultrasound anomalies.
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS?
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Variants are categorized as pathogenic, likely pathogenic or a variant of uncertain significance (VUS) utilizing the American College of Medical Genetics and Genomics (ACMG)/Association for Molecular Pathology (AMP) guidelines as published by Richards et al 2015.
Variants are categorized as pathogenic, likely pathogenic or a variant of uncertain significance (VUS) utilizing the American College of Medical Genetics and Genomics (ACMG)/Association for Molecular Pathology (AMP) guidelines as published by Richards et al 2015.
Will the lab re-contact the ordering physician if variant interpretation changes?
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Not provided.
Not provided.
Recommended fields not provided:
Clinical validity,
Clinical utility,
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
Test Procedure:
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Whole genome sequencing is conducted on an Illumina platform using the Illumina TruSeq DNA PCR-Free Library Preparation Kit at 30X mean mappable coverage.
Test Comments:
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This test includes repeat expansion analysis of 10 loci: AFF2, FMR1, AR, DMPK, FXN, FOXL2, GLS, SOX3, ZIC2, PHOX2B.
Availability:
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Tests performed
Entire test performed in-house
Test performance comments
Specimen preparation and clinical grade sequencing is performed by Variantyx or outside CLIA lab. All data processing, analysis, interpretation and report generation is performed in-house.
Entire test performed in-house
Test performance comments
Specimen preparation and clinical grade sequencing is performed by Variantyx or outside CLIA lab. All data processing, analysis, interpretation and report generation is performed in-house.
Analytical Validity:
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The IriSightTM Prenatal Analysis - Proband is a whole genome sequence based test designed to identify genetic variants that correlate with prenatal findings and/or are predicted to result in severe, early onset genetic disorders. This test includes sequence analysis (single nucleotide variants, deletions/insertions, characterized intronic variants); copy number variants, duplications/deletions, …
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Proficiency testing (PT):
Is proficiency testing performed for this test?
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Yes
Method used for proficiency testing: Help
Intra-Laboratory
Yes
Method used for proficiency testing: Help
Intra-Laboratory
VUS:
Software used to interpret novel variations
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Proprietary Variantyx Genomic Intelligence Platform
Proprietary Variantyx Genomic Intelligence Platform
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:
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Category:
Not Applicable
Additional Information
Reviews:
Clinical resources:
Practice guidelines:
Consumer resources:
IMPORTANT NOTE:
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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.