Provincial NIPT Labs

Provincial NIPT Labs at a Glance

Multiple Gestation (twins or more)

Pregnancy Type	Questions to Consider	Harmony® Prenatal Test \| Dynacare	PanoramaTM NIPT \| LifeLabs
non-IVF twin pregnancy	Can NIPT be done?	Yes	Yes and zygosity testing is included (which means it can can tell you if the twins are identical or fraternal)1
IVF twin pregnancy	Can NIPT be done when a pregnant individual's own oocytes are used?	Yes	Yes and zygosity testing is included
IVF twin pregnancy	Can NIPT be done when a gestational carrier (surrogate) is involved?	Yes	No (only singletons)
IVF twin pregnancy	Can NIPT be done when donor eggs (not self) are used?	Yes	No (only singletons)
Any pregnancy	Can NIPT be done for higher order multiples?	No	No

1 - Chorionicity, rather than zygosity, has an impact on the outcome of twin pregnancies. Zygosity testing can complement, but not replace, ultrasound evaluation of chorionicity in some clinical scenarios. For example, evaluating zygosity through NIPT may impact pregnancy surveillance when chronicity assignment is uncertain, and can help interpret “high risk” aneuploidy results.