Chromosome Analysis, Routine; Rule out mosaic (Blood)

Test Information

Chromosome mosaicism is defined as the presence of two or more cell lines with different chromosome constitutions in a single individual. Chromosome analysis to rule out mosaicism includes routine karyotyping using G-banded preparations, but additional cells are counted compared to routine chromosome analysis. A minimum of 50 cells are counted and 5 cells are analyzed.

Turnaround Time

3 weeks

CPT Code(s)

88230, 88263, 88285 x5, 88291

Cost

$755

Specimen Requirements

5-7 ml of whole blood in a green top (sodium heparin) tube is needed for chromosome analysis. For newborns and small infants, 2-3 ml of blood in a sodium heparin, green top is acceptable.

Transport Instructions

The specimen should be kept at room temperature and delivered via overnight shipping. Blood samples need to arrive to the lab within 24 hours of blood draw. Do not freeze the specimen.

Have Questions Need Support?

Call our laboratory at 1-800-473-9411 or contact one of our Laboratory Genetic Counselors for assistance.
Robin Fletcher, MS, CGC
Kellie Walden, MS, CGC

Chromosome, Chromosome Studies, Cytogenetic Testing
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