STAT Prenatal Targeted CNV Analysis

Two T-25 flasks

All prenatal specimens will be tested for maternal cell contamination (MCC). Send maternal blood (EDTA tube) for comparison. If blood is unavailable, we will accept genomic DNA and Saliva sample types.

Transfer cultured amniocytes or cultured CVS to two T-25 flasks at ≥80% confluence.

Cultures topped off with sterile medium and shipped immediately at ambient temperature by overnight express with arrival Monday-Friday only.

For prenatal samples, Revvity Omics will provide a shipping label to use for shipping the sample to our lab. Please call 1 (866) 354-2910 to arrange this. At this time, you will also be connected to a laboratory genetic counselor to answer any questions about the testing.

For samples originating outside of the United States, please contact your nearest Revvity Omics laboratory for more information.

Sterile, screw-top container filled with tissue culture transport medium.

All prenatal specimens will be tested for maternal cell contamination (MCC). Send maternal blood (EDTA tube) for comparison. Transport products of conception and/or fresh tissue (minimum: 10 mg) in a sterile, screw-top container filled with tissue transport medium. Do not place in formalin. If the specimen is too large for a normal collection tube, a larger sterile container can be used.

If the autopsy is performed: Facia lata, diaphragm, tendon, skin, tissue from internal organs (if fresh), chest wall cartilage (particularly if macerated), or placenta from fetal side. If no autopsy is performed: Placenta from fetal side is preferred, e.g., villi. Umbilical cord is also acceptable. State clearly in the TRF whether the tissue was of fetal or placental in origin.

Shipped immediately at ambient temperature or with a cold pack, especially under hot weather to the laboratory by overnight express with arrival Monday-Friday only. Alternatively, fresh POC and/or tissue samples can be snap-frozen and kept at -80°C. Frozen tissue samples should be shipped overnight on dry ice with arrival Monday-Friday only - NO WEEKEND SHIPMENTS!

For prenatal samples, Revvity Omics will provide a shipping label to use for shipping the sample to our lab. Please call 1 (866) 354-2910 to arrange this. At this time, you will also be connected to a laboratory genetic counselor to answer any questions about the testing.

For samples originating outside of the United States, please contact your nearest Revvity Omics laboratory for more information.

Please contact a Revvity Omics Laboratory genetic counselor for information on prenatal test requests and acceptable sample types.

Required DNA Quantity by Test Type*:

• Next Generation Sequencing (NGS): Send >1000 ng total gDNA @ >15 ng/μL. Please ship samples in 10mM Tris. Do not use EDTA.
• Sanger Sequencing: Send >500 ng total gDNA @ >15 ng/μL (varies by the size of the gene and the variants requested).
• Non-Sanger Sequencing Tests: Send >500 ng total gDNA @ >15 ng/μL.

* Required DNA Quality: High molecular weight DNA (>12kb). A260/A280 reading should be ≥ 1.8. A260/230 a ratio range of 1.8 to 2.2. Contact the laboratory for specific amounts if total ng cannot be met.

Ship overnight at ambient temperature.

• Research Laboratories: DNA extracted in research laboratories is not acceptable. Only under exceptional circumstances (e.g., proband not available) will DNA extracted in a research laboratory be accepted for clinical testing. Additional testing (e.g., of other family members) may be required to confirm results.
• Laboratories outside the United States: Non-US laboratories are not subject to CLIA regulations and will be reviewed on a case-by-case basis. Please call to speak with a laboratory genetic counselor before submitting a DNA sample from any non-CLIA-certified laboratory.
• Special Notes: If extracted DNA is submitted, information regarding the method used for extraction should be sent along with the sample.