Parental Sample Prep for Prenatal Microarray Testing, Blood
Use
This test is useful for preparing parental blood specimens for possible confirmation testing if an abnormality is detected on the prenatal array sample. It involves DNA extraction of the maternal blood specimen used for maternal cell contamination testing, aiding in determining if detected abnormalities on prenatal samples are inherited or de novo.
Special Instructions
The test must be ordered in conjunction with CMAP, CMAPC, or CMAMT orders. Each parent should have a specimen collected using a different order number than the fetal specimen collected for the linked orders. The test will be performed on Monday through Friday.
Limitations
This test contains no charge and serves as a way to correlate proband and parental specimens. It does not provide a direct interpretation of prenatal results but assists in the analysis if an abnormality is detected. The test does not result in a direct charge, and no interpretation is provided. Specimen handling conditions must be strictly followed.
New York Approved
Methodology
Culture-based
Biomarkers
LOINC Codes
- 50397-9
- 69965-2
- 42349-1
- 31208-2
- 85069-3
Result Turnaround Time
0 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
4 mL sodium heparin and 3 mL EDTA
Minimum Volume
2 mL sodium heparin and 2 mL EDTA
Container
Green top (sodium heparin) and lavender top (EDTA)
Collection Instructions
Invert several times to mix blood. Send whole blood specimens in original tubes. Do not aliquot.
Causes for Rejection
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Ambient (preferred) |