Panel Summary
CFvantage® Cystic Fibrosis Expanded Screen
XSense®, Fragile X with Reflex
Spinal Muscular Atrophy (SMA) Carrier Screen
If Fragile X, PCR shows a premutation or a full mutation, then Fragile X Methylation Analysis will be performed at an additional charge (CPT codes(s): 81244)
See individual tests
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 4 mL whole blood collected in an EDTA (lavender-top) or ACD (yellow-top) tube |
| Minimum volume | 3 mL |
| Collection instructions | Normal phlebotomy procedure. Specimen stability is crucial. Store and ship room temperature immediately. Do not freeze. |
| Transport container | EDTA (lavender-top) or ACD (yellow-top) tube |
| Transport temperature | Room temperature |
| Specimen stability | Room temperature 8 days Refrigerated 8 days Frozen Unacceptable |
| Reject criteria | Do not reject: Call lab |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.