GTR Test Accession:
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GTR000604130.3
NYS CLEP
Last updated in GTR:
2024-04-19
View version history
GTR000604130.3,
last updated:
2024-04-19
GTR000604130.2,
last updated:
2023-03-15
GTR000604130.1,
registered in GTR:
2023-03-14
Last annual review date for the lab: 2024-07-30
LinkOut
At a Glance
Test purpose:
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Diagnosis
Conditions (58):
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Enzymes (17):
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Acid sphingomyelinase;
Alpha-N-acetylglucosaminidase;
Alpha-galactosidase;
Beta-galactosidase;
Beta-glucocerebrosidase
more...
Genes (1):
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Sialidase ()
Methods (1):
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Biochemical Genetics - Enzyme assay: Enzyme activity
Target population: Help
Individuals of any age with neurological symptoms, hepatosplenomegaly, white matter …
Clinical validity:
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Not provided
Clinical utility:
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Establish or confirm diagnosis
Ordering Information
Offered by:
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Test short name:
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LSD testing
Specimen Source:
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- Cord blood
- Fetal blood
- Fibroblasts
- whole blood
- Plasma
- Urine
- White blood cell prep
- View specimen requirements
Who can order: Help
- Genetic Counselor
- Health Care Provider
- Licensed Physician
- Nurse Practitioner
- Physician Assistant
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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Send blood sample with clinical information. See website for more information.
Order URL
Order URL
Test service:
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Clinical Testing/Confirmation of Mutations Identified Previously
Test development:
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Test developed by laboratory but exempt from FDA oversight (eg. NYS CLEP approved, offered within a hospital or clinic)
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:
Test Order Code,
Lab contact for this test,
Test strategy
Conditions
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Total conditions: 58
Condition/Phenotype | Identifier |
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Test Targets
Enzymes
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Total enzymes: 17
Enzyme | Associated Condition |
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Genes
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Total genes: 1
Gene | Associated Condition | Germline or Somatic | Allele (Lab-provided) | Variant in NCBI |
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Methodology
Total methods: 1
Method Category
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Test method
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Instrument *
Enzyme assay
Enzyme activity
* Instrument: Not provided
Clinical Information
Test purpose:
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Diagnosis
Clinical utility:
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Establish or confirm diagnosis
View citations (1)
- Wenger DA, Luzi P. The Lysosomal Diseases Testing Laboratory: A review of the past 47 years. JIMD Rep. 2020;54(1):61-67. doi:10.1002/jmd2.12117. Epub 2020 Apr 04. PMID: 32685352.
Target population:
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Individuals of any age with neurological symptoms, hepatosplenomegaly, white matter changes, developmental delay, coarse facial features
View citations (1)
- Wenger DA, Luzi P. The Lysosomal Diseases Testing Laboratory: A review of the past 47 years. JIMD Rep. 2020;54(1):61-67. doi:10.1002/jmd2.12117. Epub 2020 Apr 04. PMID: 32685352.
Recommended fields not provided:
Clinical validity,
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
Test Procedure:
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Most testing done using leukocytes/plasma isolated from whole blood. Some tests are performed with urine.
View citations (1)
- Wenger DA, Williams C: Screening for lysosomal disorders. In Techniques in Diagnostic Human Biochemical Genetics. A Laboratory Manual, Hommes FA (ed). Wiley-Liss, New York, 1991, pp 587-617.
Test Comments:
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The selection of tests to be run is based on clinical information provided with the sample and suggestions from the healthcare provider. Not all tests will be run on each sample received.
Availability:
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Tests performed
Entire test performed in-house
Entire test performed in-house
Analytical Validity:
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Affected individuals have enzymatic values less than 10% of the normal mean. Control samples are always assayed at the same time.
View citations (2)
- Wenger DA, Luzi P. The Lysosomal Diseases Testing Laboratory: A review of the past 47 years. JIMD Rep. 2020;54(1):61-67. doi:10.1002/jmd2.12117. Epub 2020 Apr 04. PMID: 32685352.
- Wenger DA, Williams C: Screening for lysosomal disorders. In Techniques in Diagnostic Human Biochemical Genetics. A Laboratory Manual, Hommes FA (ed). Wiley-Liss, New York, 1991, pp 587-617.
Proficiency testing (PT):
Is proficiency testing performed for this test?
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Yes
Method used for proficiency testing: Help
Alternative Assessment
Yes
Method used for proficiency testing: Help
Alternative Assessment
Recommended fields not provided:
Test Confirmation,
Assay limitations,
Description of internal test validation method,
PT Provider,
Description of PT method,
Major CAP category, CAP category, CAP test list
Regulatory Approval
FDA Review:
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Not provided
NYS CLEP Approval:
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Number:
8277
Status: Approved
Status: Approved
Additional Information
Reviews:
Clinical resources:
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.