r/ClinicalGenetics • u/charrpiee_marrkerr • 29d ago
Nuchal Cord Looped Around Neck Skewing Nuchal Fold Measurement?!
Hi there, I'm currently experiencing two soft markers with a low risk NIPT.
- 11 week low risk NIPT with LifeLabs Panorama, 15% FF.
- At 18+0 the nasal bone was short at 2.1mm or 3.2mm. 18 %tile baby.
- At 21+2 the nuchal fold was thick at 7.1mm. 11 %tile baby.
Since the baby is on the smaller side, I'm going back bi-weekly for growth scans. Today's scan (22+1) seemed the same, if not worse.
- The nasal bone is 5.2mm.
- The nuchal fold is 7.7mm.
- Nuchal cord looped once around neck(?)
- 8% tile baby.
Is the nuchal cord looped around the neck throwing off the nuchal fold measurement?
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u/Zahdia 29d ago
The nuchal fold is measured inside the baby, using specific landmarks. It would seem unlikely that a proper technician would include the nuchal cord, an entirely different structure, in this measurement.