Test Code: COKARY
Karyotyping - Peripheral Blood
Chromosome Studies
Karyotyping is a laboratory technique used to analyze and visualize an individual's chromosomes, which are the rod-shaped structures containing genetic information within the cell nucleus. Humans typically have 46 chromosomes organized into 23 pairs, consisting of 22 pairs of autosomes and one pair of sex chromosomes (X and Y). Karyotyping is particularly valuable for diagnosing chromosomal abnormalities, which can arise from errors in cell division, such as nondisjunction. The procedure involves collecting a sample, often from white blood cells, stimulating cell division, and then halting the process to prepare the chromosomes for visualization. The chromosomes are stained, photographed, and arranged into pairs for analysis. Common disorders identified through karyotyping include Down syndrome, Klinefelter syndrome, and Turner syndrome. Advances in technology have enhanced karyotyping methods, including the development of digital karyotyping and fluorescence techniques, which improve the ability to detect chromosomal abnormalities. Karyotyping remains an essential tool in genetics, fertility treatments, and prenatal diagnostics.
Sample Type
Blood in NaHep
Turnaround Time
7 - 10 days days
Courier Requirements
Room Temperature - To receive in the lab the next day
Pricing
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Genes Analyzed
1 genes
None
Methodology
PHA Stimulated G-banding (GTG-banding)
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