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Maternal Cell Contamination Study, STR Analysis
Test Code15896
CPT Codes
81265
Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube
Minimum Volume
3 mL
Instructions
Maternal cell contamination (MCC) is performed as part of our quality assurance program. MCC studies will be completed, if indicated, on associated cytogenetic samples. MCC is required for all molecular tests ordered on fetal samples.
**This test is run in conjunction with either a fetal specimen (amniotic fluid, dissected chorionic villus (CVS) biopsy or products of conception) or a cord blood sample. The assay cannot be run until fetal cultures or DNA are ready.
Whole blood: Normal phlebotomy procedure. Specimen stability is crucial. Store and ship room temperature immediately. Do not freeze.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 8 days
Refrigerated: 8 days
Frozen: unacceptable
Refrigerated: 8 days
Frozen: unacceptable
Methodology
Multiplex Polymerase Chain Reaction • Fragment Analysis by Capillary Electrophoresis
FDA Status
This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.
Setup Schedule
Set up and Report available: See instructions (Run in conjunction with fetal assay)
Reference Range
See Laboratory Report
Clinical Significance
Maternal Cell Contamination Study, STR Analysis, provides assurance that test results from fetal specimens are not influenced by contaminating maternal material. This test also allows for establishing the proper maternal-fetal relationship between specimens by using sophisticated analysis of 15 highly polymorphic STR loci.
