Did you know that only 3–15% of the cell-free DNA in maternal plasma is placental in origin — yet it represents the fetal genome? 👶
That tiny fraction is what makes Non-Invasive Prenatal Testing (NIPT) possible!
In this lecture, I’ve simplified complex textbook concepts from Creasy & Resnik, 9th Edition into a clear visual explanation covering:
🔹 What is cell-free fetal DNA
🔹 How massively parallel and targeted sequencing detect aneuploidy
🔹 Why a small “fetal fraction” matters so much
🔹 And the science behind Z-scores & Trisomy detection
🎥 Watch the full video here:
📘 Recommended for:
OB-GYN residents, fetal medicine fellows, and NEET-SS / INI-CET aspirants who want to make book reading easier and more conceptual.
☕️ If this helps you revise smarter, you can support my work by buying me a coffee — every bit goes toward creating more concise, evidence-based lectures for learners like you. 💙
#NIPT #PrenatalScreening #OBGYN #FetalMedicine #DrDeepikaOBGYNVision #CreasyResnik #cfDNA #AneuploidyScreening #MedEd #BuyMeACoffee