Clinical and Molecular Cytogenetics Laboratory

University of Texas Health Science Center | Department of Pathology, MSC-7750 | 7703 Floyd Curl Drive | San Antonio, TX 78229-3900


Test Name

Chromosome Analysis Blood

Test Overview

CPT Code(s)

88230, 88262, 88280, 88291



Culture / Microscopy / Karyotype


Specimen Requirements

Container: Sodium Heparin (green top tube)

Optimal Quantity: 4-5 ml

Minimum Quantity: 1-2 ml

Storage: Room Temperature

Stability at Room Temperature: 8 hours, then refrigerate

Transportation: Avoid freezing or heating over 35OC


Turnaround Time

STAT, including infants 6 months or younger: Preliminary results in 24 hours

Routine: Final report in 7-10 days for 90% cases