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FISH: Postnatal Aneuploidy Screen

Test Code
CG FPOSTNS


Alias/See Also
Performed by SQL Test Code:88911


Instructions
For trisomy 13, 18, 21; and sex chromosomes. Performed at SQL Genetics/Genomics Division. For questions: Please call the lab at 602-685-5700.

For peripheral blood; 2-3 mL (1-2 mL for infants). Sodium heparin (green top) tube. Sodium heparin preferred, lithium heparin and EDTA accepted. Invert to mix. For Amniotic fluid; 2-5 mL in addition to the ~1ml /week of gestational age (for chromosome analysis). Collect in sterile tube. For Chorionic Villus Sample(CVS); 25 - 40 mg villi in sterile culture media (or saline) in sterile tube. For Products of Conception (POC); at least 4x4 mm tissue from fetus, at least 4x4 mm chorionic villi from placenta in sterile culture media (or saline) in sterile tube.
See link below for specimen details, methodology, setup schedule and reference ranges.


FDA Status
LDT

Additional Information
FISH: Postnatal Aneuploidy Screen


The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.