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Test Code

KVILI

Test Name

Chromosome Analysis, Chorionic Villi Biopsy

CPT Codes

88235, 88267, 88280

Expected Turnaround Time

7 - 10 days

Clinical Utility

This test is used to determine fetal karyotype.

Specimen and Container Info

Specimen Type: Chorionic Villi

Collection Container: CVS transport tube

Desired Specimen Volume: 20-30 mg

Collection Instructions

Collect CVS in a syringe (transabdominal) or catheter (transcervical) and transfer by flushing with the media from the sterile container back into it.

Processing and Submission Instructions

**Requires Integrated Genetics Test Requisition**

Wash with sterile saline solution (NaCl 0.95%) containing sodium heparin (two to three drops of sodium heparin in 10 mL of saline).
Carefully transfer 20-30 mg of CVS into the CVS transport tube, using a sterile pipette or sterile fine needle forceps. Ensure transport tube is filled with media.
Samples from twin (multiple) pregnancies should be appropriately labeled and placed in separate transport containers with a separate request form for each twin.
If prior NIPT studies have been performed, please include a copy of the report.

Transport Instructions

Transport to the laboratory refrigerated.

Stability Requirements

Room Temperature

24 hours

Causes for Rejection

Upon receipt, suitability of specimen will be determined by the Cytogenetics laboratory.

Methodology

Snp Microarray Analysis Is Performed Using The Cytoscan Hd-Platform

Reference Intervals

See patient report.

Reference Lab

Integrated Genetics

Testing Schedule

Varies