Prenatal genomic testing for faster, clearer answers

When fetal findings raise concern, every week matters. GeneDx gives you flexible access to CMA, exome, and genome testing backed by deep prenatal expertise, fast turnaround times, and the power of GeneDx Infinity™.

Testing options for every step toward an answer

From CMA to exome and genome, GeneDx offers a comprehensive prenatal testing portfolio so you can choose the approach that fits your patient's clinical presentation, including a range of fetal anomalies and ultrasound findings. Our suite of prenatal tests helps you uncover answers with precision and speed without needing to work with multiple labs or collect multiple samples.

CMA

Consider when: Abnormal serum screening, non-diagnostic karyotype, or fetal ultrasound anomalies suggest a deletion or duplication syndrome.

Turnaround time: ~2 weeks

ExomeDx™ Prenatal

Consider when: Fetal anomalies are detected via ultrasound and a monogenic condition is suspected, including when CMA and karyotype are non-diagnostic.

Turnaround time: within 2 weeks

‍
Available for
proband, duo, or trio

GenomeDx™ Prenatal

Consider when: Complex or unexplained fetal anomalies are detected and broad genomic analysis is needed.

‍Turnaround time: within 2 weeks

‍
Available for
proband, duo, or trio

Targeted Panels: Use when a specific condition is strongly suspected and CMA and karyotype are non-diagnostic. Turnaround time: 2-3 weeks

Prenatal testing pathways

One order. One sample. More ways to get answers.
Every prenatal case is different. GeneDx offers flexible testing pathways that allow you to start with the test that makes sense for your patient while creating a clear path to broader genomic answers when needed. Choose the testing approach that fits the clinical situation, with concurrent and reflex pathways designed to help streamline the path to answers. Learn how prenatal exome-to-genome reflex works.
Concurrent
Run tests together when getting comprehensive answers as quickly as possible is the priority.
Reflex
Start with one test and automatically move to the next when additional analysis is needed, without a new order or fetal sample.
Reflex or Concurrent
CMA → Exome

Start with CMA. Add the power of exome.

Pair CMA with ExomeDx™ Prenatal to evaluate chromosomal and sequence-level causes of fetal anomalies.

Available: Concurrent or Reflex

TAT: 2 weeks

Explore CMA + Exome
Reflex or Concurrent
CMA → Genome

Start with CMA. Expand to genome when needed.


Pair CMA with GenomeDx™ Prenatal for a streamlined path to broader genomic analysis.

Available: Concurrent or Reflex

TAT: 2 weeks

Explore CMA + Genome
Reflex
Exome → Genome

Start with exome. Keep the path to genome open.


Begin with ExomeDx™ Prenatal and automatically reflex to GenomeDx™ Prenatal when exome does not fully explain the fetal findings.

Available: Reflex

TAT: As soon as 2 weeks

Explore Exome to Genome Reflex
Prenatal CMA
ExomeDx Prenatal™
GenomeDx Prenatal™
Diagnostic Yield
13%2
31%3
‍
*Incremental diagnostic yield
19-36%4-6
‍*Incremental diagnostic yield
TAT
1-2 weeks
Within 2 weeks
Within 2 weeks
SNV’s
CNVs
Indels
Intronic/Regulatory Variants
UPD
Repeat Expansions (STR)
10 conditions*
Aneuploidy
Polyploidy
Triploidy
Maternal Cell Contamination (MCC) Detection
Reanalysis
Average depth of coverage
N/A
100-120x with 98% of the targeted region at ≥10x coverage
30x
Pre-test Patient Education Resources
Post-test genetic counseling
Genotype- Driven, Phenotype- Informed
Diagnostic Yield
13%2
TAT
1-2 weeks
SNV’s
CNVs
Indels
Intronic/Regulatory Variants
UPD
Repeat Expansions (STR)
Aneuploidy
Polyploidy
Triploidy
Maternal Cell Contamination (MCC) Detection
Reanalysis
Average depth of coverage
N/A
Pre-test Patient Education Resources
Post-test genetic counseling
Genotype- Driven, Phenotype- Informed
Diagnostic Yield
31%3
‍*Incremental diagnostic yield
TAT
Within 2 weeks
SNV’s
CNVs
Indels
Intronic/Regulatory Variants
UPD
Repeat Expansions (STR)
Aneuploidy
Polyploidy
Triploidy
Maternal Cell Contamination (MCC) Detection
Reanalysis
Average depth of coverage
100-120x with 98% of the targeted region at ≥10x coverage
Pre-test Patient Education Resources
Post-test genetic counseling
Genotype- Driven, Phenotype- Informed
Diagnostic Yield
19-36%4-6
‍*Incremental diagnostic yield
TAT
Within 2 weeks
SNV’s
CNVs
Indels
Intronic/Regulatory Variants
UPD
Repeat Expansions (STR)
10 conditions
Aneuploidy
Polyploidy
Triploidy
Maternal Cell Contamination (MCC) Detection
Reanalysis
Average depth of coverage
30x
Pre-test Patient Education Resources
Post-test genetic counseling
Genotype Driven Phenotype Informed

See prenatal genomics in practice

Explore real cases and clinical education designed to help you apply genomic testing in prenatal care.

Case study

When CMA doesn’t provide the answer

See how prenatal exome sequencing helped uncover a diagnosis after chromosomal microarray testing was non-diagnostic.

Read the case study
Case study

From fetal findings to a genomic answer

Explore a real prenatal case and see how broader genomic testing helped provide answers during pregnancy.

Read the case study
Featured webinar

Counseling considerations in the genomic era of prenatal testing

Explore key counseling considerations in prenatal genomic sequencing, including fetal and parental findings, clinical implications, transition of care, and multidisciplinary coordination.

Watch on demand

Give families clearer answers, faster.

From choosing the right test to navigating results, GeneDx is here to support you and your patients at every step.