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Labcorp Oklahoma, Inc.
Test Directory


Index:

Spinal muscular atrophy (SMA)

Order Name SPINAL MA
Test Number: 5593965
Revision Date 10/01/2022
Test Name Methodology LOINC Code
Spinal muscular atrophy (SMA)
Polymerase Chain Reaction  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 5mL (3mL) Whole Blood EDTA (Lavender Top) Room Temperature
GENERAL INFORMATION
Testing Schedule Mon-Fri 
Expected TAT 1-2 Weeks  
Clinical Use Spinal muscular atrophy (SMA) is a relatively common recessive autosomal disease affecting 1 in 6000 births. Four clinical types of the disease, types I - IV, are defined by decreasing severity of symptoms. 
Notes SMA analysis can be included in a the Hypotonia Panel with myotonic dystrophy (DM) and Prader-Willi Syndrome (PWS) to expedite diagnosis.

Please submit Pre-Authorization form when the patient has United Healthcare insurance.
CPT Code(s) (Pre-Authorization Required)
81400 (2013 code)
Lab Section Reference Lab