Chromosome Analysis, Routine; Rule Out Mosaic (Blood)

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

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.

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.