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Beaumont Laboratory

Spinal Muscular Atrophy DNA Test - Carrier/Screening

SMA Panel, SMN, LabCorp #450010, Testing requires pathology approval prior to collection.


This test is not included in the Beaumont Laboratory testing formulary, however, the Laboratory can facilitate specimen collection.

  • This test requires pathology review. Contact the Sendout Laboratory at 248-551-9045 before ordering this test.
  • Testing requires the ordering physician to send a copy of the patient's insurance card (front and back).
  • This test will be billed to the patient's insurance. If not covered by insurance, the patient is responsible for the full cost of testing.
  • Specimens received without the appropriate forms and information will not be shipped.
  • Once approved, order test as a Miscellaneous Sendout (XMISC). 

Specimen Collection Criteria

Collect: Three Lavender-top EDTA tubes or two Yellow-top ACD tubes, after obtaining necessary pathology approval. (Min: 10 mL)

Physician Office/Drawsite Specimen Preparation

Do not centrifuge or freeze. Maintain whole blood at room temperature (20-26°C or 68-78.8°F) prior to transport. Pathology review and all appropriate forms must be completed prior to specimen transport.

Preparation for Courier Transport

Transport: 14 mL whole blood, room temperature (20-26°C or 68-78.8°F). (Min: 10 mL)

Rejection Criteria

  • Specimens received without prior Laboratory notification and review.
  • Frozen specimens.
  • Centrifuged specimens.
  • Specimens not collected and processed as indicated. 


Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 96 hours
Refrigerated (2-8°C or 36-46°F): 96 hours
Frozen (-20°C/-4°F or below): Unacceptable

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.


Sent to LabCorp Integrated Genetics, Calabasas Hills, CA.


Results available in 6-10 days.

Reference Range

By report.

Test Methodology

Polymerase Chain Reaction (PCR) Amplification followed by Gel Electrophoresis.

CPT Code

81401. Add 81479 when SMN2 analysis is performed.

Test Codes

LabCorp #450010, Testing requires pathology approval prior to collection.

Last Updated


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This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.