Genetic Counselor's Toolbox

Curated prenatal genetics resources for genetic counselors, maternal-fetal medicine specialists, obstetricians, and other clinicians.

Last reviewed: August 24, 2026 Links: updated to current authoritative or stable landing pages where possible

Professional-use reminder: This page is a reference collection, not a substitute for current laboratory specifications, professional guidelines, institutional policy, or clinical judgment. Please review the Perinatology.com Disclaimer and Privacy Policy.

California Prenatal Screening Program
Current Guidelines & Practice Resources
Perinatology.com Calculators & Teaching Tools
Genetics Databases & Clinical Reference
Software & Clinical Utilities
Testing & Laboratory Resources
Commercial laboratory links are provided as examples and for test-menu access. Inclusion does not constitute endorsement. Confirm specimen requirements, methodology, reportable range, limitations, turnaround time, and current ordering requirements directly with the laboratory.
Additional Professional Resources

Selected Current References

  1. American College of Obstetricians and Gynecologists. Screening for Fetal Chromosomal Abnormalities. Practice Advisory. January 2026.
  2. Rink BD, Dugoff L, Kuller JA, et al. Society for Maternal-Fetal Medicine Consult Series #74: Cell-free DNA screening for aneuploidies: Updated guidance. 2025. ACOG endorsed.
  3. Dugoff L, Norton ME, Kuller JA. Society for Maternal-Fetal Medicine Consult Series #41: The use of chromosomal microarray for prenatal diagnosis. Reaffirmed 2024.
  4. Van den Veyver IB, Chandler N, Wilkins-Haug LE, Wapner RJ, Chitty LS; ISPD Board of Directors. Updated Position Statement on the use of genome-wide sequencing for prenatal diagnosis. 2022. Endorsed by SMFM.
  5. Spector E, Behlmann A, Kronquist K, et al. Laboratory testing for fragile X, 2021 revision: a technical standard of the ACMG. Genet Med. 2021;23:799-812. doi:10.1038/s41436-021-01115-y.
  6. Gregg AR, Aarabi M, Klugman S, et al. Screening for autosomal recessive and X-linked conditions during pregnancy and preconception: an ACMG practice resource. Genet Med. 2021;23:1793-1806. doi:10.1038/s41436-021-01203-z.
External links were reviewed August 24, 2026. Because professional society and laboratory URLs change, authoritative landing pages are used instead of fragile deep links whenever practical.