Showing posts with label maternal serum alpha fetoprotein. Show all posts
Showing posts with label maternal serum alpha fetoprotein. Show all posts

Sunday, January 22, 2012

1st Trimester Screening

This past Thursday I was 12.1 weeks and I had my first trimester screening.  I had previously done the MSAFP (maternal serum alpha fetoprotein) blood work the week before so that if that and my US came back abnormal, I could have a CVS (chorionic villus sampling) done.

I had the US first (before knowing the AFP results) and all looked great.  There was a nasal bridge, a normal third ventricle in the brain, fluid between chin and chest and the nuchal translucency measured 1.8 mm (should be less than 3 mm).  All seemed normal and healthy with the scan.  I even got to see the sex of the baby (woo hoo!) although that is something I am not sharing until I can first tell my husband.

I then received my instant risk ratio.  Before the AFP and scan, I had a risk of 1 in 102 of Down Syndrome due to my age of 39.  After the AFP and scan, my risk lowered to 1 in 704 with an age of 29.  The Maternal Fetal Medicine (MFM) physician said I could not receive any better results.  He was quite pleased with everything and believes I have a very low risk.  Additionally, my risk for trisomy 18/13 was 1 in 187 before assessment and reduced to 1 in 3721 with an age of 20 years.

I feel very happy with the results and at peace after viewing the scan and seeing my AFP results.  I will have another MSAFP done at 16 weeks as a follow up to make sure everything is still okay and to detect for open neural tube defects.  I feel pretty confident though that all is going to go well with this pregnancy.  This egg survived over all the others, this embryo implanted and kept growing over the other 2 and this baby is still going strong no matter how many sleep deprived nights I have with my midwifery clinicals.  I am hoping every thing continues to go right with this pregnancy and we welcome a healthy baby come August.


A profile view from the scan