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Test #


Test CPT Codes


Microarray – Postnatal SNP and Copy Number Array

Test Type

Constitutional Genetics (Biochemical & Molecular Genetics)

Test Disease / Components

Genetic chromosomal imbalances

Test Technology


Clinical Utility

The recommended first-tier test for developmental delay, multiple anomalies, and autism-spectrum disorders. This test can also be ordered on parents to determine if a copy number variant in a child is inherited or de novo.

Test Specimen

Peripheral Blood

  • Green Top Sodium Heparin or Lavender top K2EDTA

  • Specimen volume  5 mL preferred (min: 1 mL)

  • Ship samples at room temperature (do not freeze or fix)

Rejection Criteria:

  • Frozen or Fixed Specimen

  • Clotted or grossly hemolyzed specimen

Storage, Stability & Shipping


  • Label specimen with patient's name and date of birth 

  • Complete requisition form with necessary information 

  • Local Clients call KSL Diagnostics at 1.800.960.1080 to schedule a pickup 

  • Ship samples at room temperature (do not freeze or fix) 


  • Specimen viability decreases during transit 

  • Send to testing lab day of collection when possible 

  • Specimen optimum if received within 48 hours

Turnaround Time (TAT)

10 Days

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