GTR Test Accession:
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GTR000592958.3
CAP
Last updated in GTR:
2023-03-13
View version history
GTR000592958.3,
last updated:
2023-03-13
GTR000592958.2,
last updated:
2021-06-11
GTR000592958.1,
registered in GTR:
2021-04-28
Last annual review date for the lab: 2024-04-04
Past due
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At a Glance
Test purpose:
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Diagnosis
Conditions (6):
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Hereditary factor VIII deficiency disease;
Hereditary factor IX deficiency disease;
Von Willebrand disease type 2A
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Genes (3):
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F8 (Xq28);
F9 (Xq27.1);
VWF (12p13.31)
Methods (2):
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Molecular Genetics - Sequence analysis of select exons: PCR; ...
Target population: Help
Not provided
Clinical validity:
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We sequenced nine positive control samples from donors. Six samples …
Clinical utility:
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Not provided
Ordering Information
Offered by:
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Specimen Source:
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- Peripheral (whole) blood
- View specimen requirements
Who can order: Help
- Health Care Provider
Test Order Code:
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P1226
View other test codes
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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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Please visit lab website for details. Inquire about functional confirmation testing.
Order URL
Order URL
Test service:
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Custom Sequence Analysis
Test development:
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Test developed by laboratory (no manufacturer test name)
Informed consent required:
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Decline to answer
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:
Lab contact for this test,
Test strategy
Conditions
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Total conditions: 6
Condition/Phenotype | Identifier |
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Test Targets
Genes
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Total genes: 3
Gene | Associated Condition | Germline or Somatic | Allele (Lab-provided) | Variant in NCBI |
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Methodology
Total methods: 2
Method Category
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Test method
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Instrument *
Sequence analysis of select exons
PCR
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
Clinical validity:
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We sequenced nine positive control samples from donors. Six samples were collected from obligate carriers, potential carriers, or patients diagnosed with HA. Three samples were from VWD patients. The HA patients and carriers were known to have the pathogenic inversion in the F8 gene, which cannot be detected by NGS; …
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View citations (1)
- Swystun LL, James PD. Genetic diagnosis in hemophilia and von Willebrand disease. Blood Rev. 2017;31(1):47-56. doi:10.1016/j.blre.2016.08.003. Epub 2016 Aug 17. PMID: 27596108.
Recommended fields not provided:
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:
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Tests performed
Entire test performed in-house
Entire test performed in-house
Analytical Validity:
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The analytic specificity and sensitivity of the NGS panel and inversion PCR assay are greater than 99%.
Proficiency testing (PT):
Is proficiency testing performed for this test?
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Yes
Method used for proficiency testing: Help
Formal PT program
PT Provider: Help
American College of Medical Genetics / College of American Pathologists, ACMG/CAP
Yes
Method used for proficiency testing: Help
Formal PT program
PT Provider: Help
American College of Medical Genetics / College of American Pathologists, ACMG/CAP
Recommended fields not provided:
Test Confirmation,
Assay limitations,
Description of internal test validation method,
Citations for Analytical validity,
Description of PT method,
Major CAP category, CAP category, CAP test list
Regulatory Approval
FDA Review:
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Not provided
Additional Information
Clinical resources:
Molecular resources:
Practice guidelines:
Consumer resources:
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Patients and consumers
with specific questions about a genetic test should contact a health care provider or a genetics professional.