| Test Code | AR |
|---|---|
| Test Summary | Gene panels for testing different disease-associated genes. |
| Acceptable Sample Types | Cord Blood , Cultured Amniocytes , Cultured Chorionic Villi , DNA, Isolated , Whole Blood (EDTA) |
| NY Approved | No |
Sequencing is performed on genomic DNA using a targeted sequence capture method to enrich for the exome. Captured regions are sequenced on a short-read next-generation sequencing (NGS) system. Coverage requirements are based on validation data. An exon is considered fully covered if all coding bases plus three nucleotides of flanking sequence on either side are covered. Alignment to the human reference genome is performed, and annotated variants within the targeted region are identified. Variants are reviewed based on minimum coverage and alternate allele frequency cutoffs defined as per laboratory procedure. Indel and single-nucleotide variants (SNVs) may be confirmed by Sanger sequencing analysis before reporting, based on laboratory requirements.
This assay cannot detect variants in regions that are not targeted, including deep intronic, promoter, or enhancer regions. Exons with nonunique sequences, such as those containing pseudogene regions, are not analyzed in this assay. Copy number variation (CNV) analysis detects deletions and duplications in genes on this panel; however, in some instances, due to exon size, sequence complexity, or other factors, certain CNVs may be difficult to detect and analyze. When reported, copy number variant size is approximate, and actual breakpoint locations may lie outside of the targeted regions. Only CNVs identified in genes included in the panel will be reported. This assay does not interrogate CNVs in mitochondrial DNA. CNV analysis will not detect tandem repeats, balanced alterations (reciprocal translocations, Robertsonian translocations, inversions, and balanced insertions), methylation abnormalities, triploidy, or genomic imbalances in segmentally duplicated regions. This assay is not designed to detect mosaicism; however, possible cases of mosaicism may be detected and reported if laboratory requirements are met.
Primary data analysis is performed using standard FASTQ conversion tools appropriate to the sequencing platform. Secondary analysis is conducted using a high-performance genomic analysis pipeline. Tertiary analysis incorporates established annotation tools together with Revvity Omics' internal software. Copy number variation and absence of heterozygosity assessments are performed using a clinical cytogenomics platform.
| SPECIAL SAMPLE INSTRUCTIONS |
Please contact a Revvity Omics Laboratory genetic counselor for information on prenatal test requests and acceptable sample types. |
|---|
| Collection |
Required DNA Quantity by Test Type*:
|
|---|---|
| Sample Condition |
* 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. |
| Shipping |
Ship overnight at ambient temperature. |
| SPECIAL SAMPLE INSTRUCTIONS |
|
| Collection Container(s) |
Two T-25 flasks |
|---|---|
| Collection |
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. |
| Sample Condition |
Transfer cultured amniocytes or cultured CVS to two T-25 flasks at ≥80% confluence. |
| Shipping |
Cultures topped off with sterile medium and shipped immediately at ambient temperature by overnight express with arrival Monday-Friday only. |
| SPECIAL SAMPLE INSTRUCTIONS |
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. |
| Collection Container(s) |
EDTA (Purple Top) or ACD (Yellow Top) |
|---|---|
| Collection |
Collect 1 to 3 mL of fetal blood. |
| Sample Condition |
Store at ambient temperature. Do not refrigerate or freeze. |
| Shipping |
Ship overnight at ambient temperature ensuring receipt within 5 days of collection. |
| Collection Container(s) |
EDTA (purple top) |
|---|---|
| Collection |
Infants (< 2-years): 2 to 3 mL; Children (>2-years): 3 to 5 mL; Older children and adults: Minimum 5mL. The blood tube should be inverted several times immediately after blood collection to prevent coagulation. |
| Sample Condition |
Store at ambient temperature. Do not refrigerate or freeze. |
| Shipping |
Ship overnight at ambient temperature ensuring receipt within 5-days of collection. |
| SPECIAL SAMPLE INSTRUCTIONS |
Clotted or hemolyzed samples are not accepted. |
Select the correct test for your patient, and download and fill out the Clinical Genomics test requisition form.
Obtain a sample for testing from the patient using one of the provided Revvity Omics test packs.
Send samples and all required forms back to Revvity for processing using pre-paid shipping label.
We are here to answer your questions.