LabCorp and its Specialty Testing Group, a fully integrated portfolio of specialty and esoteric testing laboratories.

Cytogenetics Chorionic Villi Sampling (CVS) Chromosome Analysis


88235; 88267; 88280



Special Instructions

Please call our Client Services Department prior to sending first specimen. If additional testing such as DNA is indicated, call Client Services for further specimen requirements.

Expected Turnaround Time

6 - 10 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Specimen Requirements


Chorionic villi


15-30 mg


Sterile collection tube with Integrated Genetics provided transport medium

Storage Instructions

Maintain specimen at room temperature and transport to the Cytogenetics Laboratory immediately. Do not freeze. 

Causes for Rejection

No villi submitted in specimen; improper labeling; frozen specimen; specimen placed in fixative

Test Details


Determine fetal karyotype



If you’re a healthcare provider, you’re in the right place. If you’re a current or future patient, click the link below.