SNP Microarray−Prenatal (Reveal®)

A completed Informed Consent and Prenatal Chromosome SNP Microarray Questionnaire should accompany specimens. Call 800-345-4363 to request the Informed Consent and Questionnaire form. If a chromosome study has been performed, it's recommended that it be included with sample submission.

If prior NIPT studies have been performed, include copy of the report.

If specimens from a twin pregnancy are submitted by request, it can be reported if these are DZ or MZ twins. Concurrent maternal contamination (MCC) Studies (Maternal Cell Contamination [511402]) are recommended. If Direct Amniotic fluid or chorionic villus sample (CVS) submitted, test number will auto change to SNP Microarray (Direct)−Prenatal (Reveal®) [510200]. If Direct submitted under test number 510200 doesn't meet requirements for Microarray testing, test number will be changed to 510100 and cultures will be needed.

If cultures are needed and performed by Labcorp, additional days will be required to complete testing. A delay notification will be sent to the client if cultures are necessary.

A completed Informed Consent and Prenatal Chromosome SNP Microarray Questionnaire should accompany specimens. Call 800-345-4363 to request the Informed Consent and Questionnaire form. If a chromosome study has been performed, it is recommended that it be included with sample submission. If prior Cell-free DNA/NIPT studies have been performed, include a copy of the report.

Concurrent maternal contamination (MCC) Studies (Maternal Cell Contamination [511402]) are recommended. If direct amniotic fluid or chorionic villus samples (CVS) are submitted, test number will be changed to SNP Microarray (Direct)−Prenatal (Reveal®) [510200]. If direct submitted under Test No. 510200 doesn't meet requirements for microarray testing, test number will be changed to 510100 and cultures will be needed. Due to the nature of the culture process, an additional 2-3 weeks will be needed for culture growth before the sample can be shared for microarray testing. A delay notification will be sent to the client if cultures are necessary.

SNP microarray analysis is performed using the Cytoscan® HD Accel platform, which uses 743,000 SNP probes and 2,029,441 NPCN probes with a median spacing of 0.818 kb.

SNP microarray analysis is performed using the Cytoscan® HD Accel platform, which uses 743,130 SNP probes and 2,029,441 NPCN probes with a median spacing of 0.818 kb.