Test directory: SNP Microarray, Prenatal (Reveal)

Ordering Code 8636
Test Name SNP Microarray, Prenatal (Reveal)
Alias SNP Microarray (Direct) - Prenatal (Reveal (R))
SNP Microarray Amniotic
CVS Cultures
Preferred Specimen Amniotic Fluid
Preferred Container Sterile Container
Other Specimen/Container Chorionic villus sample (CVS) cells
Collection Instructions Collect M-W only due to short stability

Gender by ultrasound is required. Informed Consent and
Prenatal Chromosome SNP Microarray Questionnaire are required
https://www.labcorp.com/resource/clinical-questionnaire-for- snp-microarray https://womenshealth.labcorp.com/sites/default/files/ 2022-09/17231%20LabCorp%20Informed%20Consent%20Form_FINAL %20-%20English%20only.pdf
If prior NIPT or chromosome studies have been performed, include copy of the report. Concurrent maternal cell contamination studies are recommended.
Transport Requirements Oahu: Ambient
Airline: Ambient
Specimen Stability Ambient: 4 Days
Refrigerated: Not Stable
Frozen: Not Stable
Do not reject. Upon receipt, suitability of specimen will be determined by the Cytogenetics laboratory
Rejection Criteria Quantity not sufficient for analysis (less than 10 mL of amniotic fluid or DNA quantity <20 ng/uL); bloody sample
Rubber stopper, specimen in fix, and/or frozen specimen cannot be processed
Avail. Stat NO
Analytic Time 21 Days; cultures may extend TAT
Methodology SNP microarray analysis is performed using the Cytoscan (R)
HD platform, which uses more than 743,000 SNP probes and 1,953,000 NPCN probes with a median spacing of 0.88 kb.
Reference Lab  Labcorp

Reference range(s)

The reference ranges listed below are valid on this date of September 23, 2026.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Specimen Type ALL See report.
# of Genotyping Targets ALL See report.
Array Type ALL See report.
Diagnosis ALL See report.
Interpretation ALL See report.
Director Review: ALL See report.
PDF ALL See report.