- OHSU Service Code:
- 102-8907
- Lab Section:
- Molecular Diagnostic Center
- Synonyms:
- Maternal Cell Rule-Out
- Specimen
Requirements:
- Mother: 6.0 mL blood in EDTA vacutainer tube.
Fetus: 10 mL amniotic fluid; 10-20 mg chorionic villus (CVS) or 2 T-25 flasks of cultured amniocytes or CVS. For requisition slips.
- Comments:
- PCR based testing of the fetal specimen to detect the presence of contaminating maternal DNA. The sensitivity of the assay could detect approximately 5% maternal material in the fetal specimen. Maternal contamination studies are performed as confirmatory tests for genetic diease testing of fetal material.
