Cytogenomic SNP Microarray - Fetal
Ordering Recommendation

• 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)
7-21 days
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Time SensitiveTime Sensitive
Cytogenetic Test Request Form Recommended (ARUP form #43097)Cytogenetic Test Request Form Recommended (ARUP form #43097)
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
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.  
Specimen Preparation
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.  
Storage/Transport Temperature
Room temperature (all specimens).  
Unacceptable Conditions
Frozen or fixed specimens.  
Ambient: 48 hours; Refrigerated: Acceptable but not ideal; Frozen: Unacceptable  
Reference Interval
By report
Interpretive Data
This test must be ordered using Cytogenetic test request form 43097 or through your ARUP interface. Please submit the Cytogenetics and Chromosome Studies Information Form with the electronic packing list.

Compliance Statement C: For human genetic inheritable conditions and mutations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.

Counseling and informed consent are recommended for genetic testing. Consent forms are available online.
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.
CPT Code(s)
Component Test Code*Component Chart NameLOINC
0050548Maternal Contamination Study Fetal Spec31208-2
2002367EER Cytogenomic SNP Microarray - Fetal11526-1
2002368Cytogenomic SNP Microarray - Fetal62356-1
2002523Maternal Specimen8251-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • Array CGH
  • Comparative Genomic Hybridization
  • Microarray Genomic, Fetal
  • Oligo Array