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Vanderbilt Pathology Laboratory Services

Test Directory



CHROMOSOME SNP MICROARRAY (CGM)

Department: Cytogenetics
Test Synonym(s): CGM, High Resolution Chromsome Analysis
CPT Codes: 81229
Methodology: Cytogenetic constitutional (genome-wide) microarray analysis for SNP and copy number variants
Tube Type: Lavender top (EDTA) and Dark green top (Sodium Heparin)
Specimen: Peripheral blood
Pediatric Requirements: 2 mL each
Volume: 3 - 7 mL each
Minimum Volume: 1 mL each
Temperature: Room temperature
Reasons for Rejection: Clotted, frozen
Days Performed: Monday - Friday
Times Performed: 7 a.m. - 6 p.m.
TAT: 28 days
Special Instructions: Include patient history and diagnosis

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