Monday, October 20, 2008

Results of Nuchal Translucency Test


We went to a specialist today, Dr. McGhee, for our Nuchal Translucency Test. We decided not to have an amniocentesis, since it is not recommended unless I am 35 or older, but to have a non-invasive pre-screening test done for Down Syndrome. (The Nuchal Trancslucency Test, performed between 11 and 14 weeks of pregnancy, uses ultrasound to measure the clear space in the folds of tissue behind a developing baby's neck. (Babies with DS and other chromosomal abnormalities tend to accumulate fluid there, making the space appear larger.) This measurement, taken together with the mother's age and the baby's gestational age, can be used to calculate the odds that the baby has DS. Nuchal translucency testing is usually performed along with a maternal blood test.)

Dr. McGhee did the ultrasound and we got to watch the baby move around for at least 15 minutes! In the top picture the baby is waving (or I think about to suck his/her thumb), the middle and last picture are from about waist up. Apparently he/she was not in the right position for the doctor to measure the space in the neck for a while so we had to wait and watch. The doctor pointed out two hands with five fingers on each one, two feet, two eyes, a nose, mouth, two ears, heart, liver, and all the major organs! He said our baby is very active! Once the baby was in the right position he measured the space in the neck and immediately said 1.19. Sean said, "Oh good!" but I had no idea what 1.19 meant. Dr. McGhee said that if the number was 2.5 or above his voice would be changing dramatically right now and we would be having a very serious conversation but since it was a low number all signs are indicating that we have a healthy baby! We will get the final results when my bloodwork comes back on Thursday but everything looks good. Conveniently Sean was out of the room when the nurse took my blood this time, ha! We will go back in 3-4 weeks for a follow up where Dr. McGhee measures the space again to make sure the number still falls within the normal range.

We do want to find out if we are having a boy or a girl and the doctor told us what he thinks we are having!!!!! But, we won't be officially announcing the gender until a few more weeks after another ultrasound. Surprisingly Dr. McGhee asked me if I was sure of my due date? I said May 1st is the estimated due date my doctor gave me and I was accurate with the dates I gave him. Apparently our little one is developing quickly. Dr. McGhee said from crown to rump he/she is about 3" long, which developmentally is about 14 weeks, which would estimate my due date as April 19th instead of May 1st!

I am 12 weeks and 3 days. Here is what babycenter.com says about how the baby is developing:

Your pregnancy: 12 weeks
How your baby's growing:The most dramatic development this week: reflexes. Your baby's fingers will soon begin to open and close, his toes will curl, his eye muscles will clench, and his mouth will make sucking movements. In fact, if you prod your abdomen, your baby will squirm in response, although you won't be able to feel it. His intestines, which have grown so fast that they protrude into the umbilical cord, will start to move into his abdominal cavity about now, and his kidneys will begin excreting urine into his bladder.Meanwhile, nerve cells are multiplying rapidly, and in your baby's brain, synapses are forming furiously. His face looks unquestionably human: His eyes have moved from the sides to the front of his head, and his ears are right where they should be. From crown to rump, your baby-to-be is just over 2 inches long (about the size of a lime) and weighs half an ounce.

We are so excited to be at the end of the first trimester! I feel great and have my energy back. We have my TCU 10 year Reunion/Homecoming this weekend. We can't wait to see everyone and catch up! I will try to post a few pictures next week.

Love,
Tiffany & Sean