HEXA Gene Sequencing - LG6215

Sunquest Code:LSMISC  
Epic Code:LAB4909Epic Name:Send Outs Misc Test
Synonyms:Hexosaminidase A
Methodology:Capillary Sequencing Reflex to Exon Array CGH
CPT Code:81406
Turnaround Time:Specimens are sent to reference laboratory Mon-Fri; results are reported within 4-5 weeks.
Special Instructions:A completed requisition form must be sent with each sample. See Associated Links. A signed informed consent in the patient's medical record is required; the consent should not be sent to the laboratory.
Associated Links:

Genetic Testing Consent Form, GeneDx Requisition Form

Collection Instructions

Optimal Volume:5 mL (adult); 2 mL (infants)
Minimum\Peds Volume:3 mL (adult); 1 mL (infants)
Causes for Rejection:Frozen, hemolyzed or clotted specimens.

Processing and Shipping

Specimen Processing:Whole blood. Do not process.
Shipping Instructions:Ship overnight at room temperature. Sample may be stored refrigerated up to 7 days prior to shipping.
Test Performed at or Referral Lab Lab Sendouts  (GeneDx, Inc.)
Referral Lab number:519



Confirmation of biochemical diagnosis especially in those with borderline enzyme activity.


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