So we had our second ultrasound today for the 1st trimester screening which looks for risk factors for Down Syndrome, Trisomy 18, and heart defects. They measure this fluid filled space that lies on the back of baby's neck called the Nuchal Translucency or Nuchal Fold and the measurement gives them a good indication whether the baby is at a higher risk for these problems. The normal range for the Nuchal Translucency or Nuchal Fold is lower than 3mm, but usually closer to 1-2mm. Our baby's nuchal fold was right in the middle of that range measuring at 1.5mm. The specially trained ultrasound technician told us almost as soon as she put the probe on my abdomen that the nuchal fold was thin and that she was sure it was within normal range, but she had to wait for baby to get into position to measure accurately. When she first put the probe on me baby was sleeping, but he/she started bouncing around in no time. The ultrasound technician said that they sleep and wake about every ten minutes at this stage. So they're awake for about ten minutes or so and then they sleep for about ten minutes or so. Anyways, we got to watch baby move all over the place until he/she was finally in the right position for the measurements. We got to watch baby wave at us, kick his/her long legs as the ultrasound technician called them, stretch out, and attempt to put his/her hand in his/her mouth. It was amazing. We also got to hear (and see) the baby's heart beat again today. It was 156 beats per minute this time. The normal range is between 120-180 beats per minute.
Like I said before, even if the test today showed that the baby was at a higher risk for having down syndrome or other nural tube defects it wouldn't change anything, it would just be nice to be prepared for that chance. Also, it's nice knowing that baby is perfectly healthy and that his/her chance of having those defects is low. I told Mike after the ultrasound that it was nice to have that additional ultrasound just to see that the baby is still there, still healthy, still growing. It just put me at ease. You know me, I'm a worrier.
The ultrasound technician was very nice and took about 10 pictures of the baby for us without me even asking. Here are the best two:
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| I apologize for the pics being sideways (I don't know how to fix it) |