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Chromosome Analysis, Blood with reflex to Postnatal ClariSure® Oligo-SNP Array
Test Code18980
CPT Codes
88230, 88262
Physician Attestation of Informed Consent
This germline genetic test requires physician attestation that patient consent has been received if ordering medical facility is located in AK, DE, FL, GA, IA, MA, MN, NV, NJ, NY, OR, SD or VT or test is performed in MA.
Includes
If Chromosome analysis is normal, then Chromosomal Microarray, Postnatal, ClariSure® Oligo-SNP will be performed at an additional charge (CPT code(s): 81229)
Preferred Specimen
10 mL whole blood collected in a sodium heparin (green-top) tube
Minimum Volume
5 mL
Other Acceptable Specimens
Sodium heparin (royal blue-top) tube • Sodium heparin lead-free (tan-top) tube
Transport Container
Sodium heparin (green-top) tube
Transport Temperature
Room temperature
Specimen Stability
Specimen viability decreases during transit. Send specimen to testing lab for viability determination. Do not freeze. Do not reject.
Methodology
Culture • Karyotype • Microscopy
Reflex: Oligo-SNP Array
Setup Schedule
Daily
Report Available
Chromosome: 10 days; Array: 7 days later
Reference Range
See Laboratory Report
Clinical Significance
Chromosome analysis can be used to help determine genetic causes of intellectual disability, developmental delay, congenital anomalies, infertility, miscarriage, stillbirth, and ambiguous genitalia. Chromosome analysis does not rule out cryptic or submicroscopic chromosome abnormalities. If this analysis is normal, microarray will be performed for the detection of submicroscopic deletions and duplications and long continuous regions of homozygosity.
Performing Laboratory
| Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
| 33608 Ortega Highway |
| San Juan Capistrano, CA 92675-2042 |
Last Updated: November 6, 2024
