• Diagnostic test designed to identify genomic abnormalities (eg, aneuploidy and microdeletions).
• Performed on direct or cultured amniotic fluid and chorionic villus sampling (CVS) specimens.
Genomic Microarray (Oligo-SNP Array)
Fetal Specimen: Amniotic fluid OR chorionic villi in cytogenetic tissue media (ARUP Supply #32788). If cytogenetic tissue media is not available, collect in plain RPMI, Hanks solution, saline, or ringers.
Do not freeze specimen or expose to extreme temperatures. Do not place in formalin.
Transport 15-30 mL amniotic fluid in a sterile container OR 5-20 mg CVS in a sterile, screw-top container filled with tissue culture transport medium.
Room temperature (all specimens).
Frozen or fixed specimens.
Ambient: 48 hours; Refrigerated: Acceptable; Frozen: Unacceptable
Laboratory Developed Test (LDT)
Maternal Cell Contamination: Maternal cell contamination studies recommended. For Array AND amniotic fluid chromosomes, also order Chromosome Analysis, Amniotic fluid (ARUP test code 2002293). For Array AND CVS chromosomes, also order Chromosome Analysis, Chorionic Villus (ARUP test code 2002291). For maternal cell contamination studies or if submitting maternal blood, order Microarray Genomic, Maternal Confirm (ARUP test code 2002369) accompanied by a test request form for the mother (this test is performed at no charge). For questions regarding ordering please contact ARUP's genetic counselor at (800) 242-2787 ext. 2141.
A processing fee will be charged if this procedure is canceled, at the client's request, after the test has been set up, or if the specimen integrity is inadequate to allow culture growth. The fee will vary based on specimen type.
Turnaround times may be delayed if specimens are suboptimal or culturing is required prior to testing.
This test must be ordered using Cytogenetic test request form 43098 or through your ARUP interface. Please submit the Patient History for Prenatal Cytogenetics form with the electronic packing list (https://ltd.aruplab.com/Tests/Pdf/65).
81229; 81265 Fetal Cell Contamination (FCC)
|Component Test Code*||Component Chart Name||LOINC|
|0050548||Maternal Contamination Study Fetal Spec||59266-7|
|2002367||EER Cytogenomic SNP Microarray - Fetal||11526-1|
|2002368||Cytogenomic SNP Microarray - Fetal||62356-1|
- Array CGH
- Comparative Genomic Hybridization
- Microarray Genomic, Fetal
- Oligo Array