SMA Diagnostic Test
GTR Test Accession: Help GTR000597474.4
CAP
INHERITED DISEASEMUSCULOSKELETALNERVOUS SYSTEM ... View more
Last updated in GTR: 2024-06-28
Last annual review date for the lab: 2024-06-28 LinkOut
At a Glance
Diagnosis
Spinal muscular atrophy
Genes (2): Help
SMN1 (5q13.2); SMN2 (5q13.2)
Molecular Genetics - Deletion/duplication analysis: RT-PCR
individuals who may show signs or symptoms of spinal muscular …
Not provided
Not provided
Ordering Information
Offered by: Help
Quest Diagnostics Nichols Institute San Juan Capistrano
View lab's website
View lab's test page
Test short name: Help
SMA
Specimen Source: Help
Who can order: Help
  • Health Care Provider
  • Licensed Physician
Test Order Code: Help
CPT codes: Help
**AMA CPT codes notice
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
https://testdirectory.questdiagnostics.com/test/home
fetal samples use test code 91619
SMA carrier screen use test code 39445
Order URL
Test development: Help
Test developed by laboratory but exempt from FDA oversight (eg. NYS CLEP approved, offered within a hospital or clinic)
Informed consent required: Help
Based on applicable state law
Test strategy: Help
https://testdirectory.questdiagnostics.com
Pre-test genetic counseling required: Help
No
Post-test genetic counseling required: Help
No
Recommended fields not provided:
Conditions Help
Total conditions: 1
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 *
Deletion/duplication analysis
RT-PCR
* Instrument: Not provided
Clinical Information
Test purpose: Help
Diagnosis
Target population: Help
individuals who may show signs or symptoms of spinal muscular atrophy
Variant Interpretation:
What is the protocol for interpreting a variation as a VUS? Help
Not applicable

Will the lab re-contact the ordering physician if variant interpretation changes? Help
Not provided.
Recommended fields not provided:
Technical Information
Availability: Help
Tests performed
Entire test performed in-house
Analytical Validity: Help
Analytical sensitivity and specificity = 99%
Proficiency testing (PT):
Is proficiency testing performed for this test? Help
Yes

Method used for proficiency testing: Help
Formal PT program

PT Provider: Help
American College of Medical Genetics / College of American Pathologists, ACMG/CAP
VUS:
Software used to interpret novel variations Help
Not applicable

Laboratory's policy on reporting novel variations Help
Not applicable
Recommended fields not provided:
Regulatory Approval
FDA Review: Help
Category: FDA exercises enforcement discretion
Additional Information

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.