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Unformatted text preview: increased risk for chromosomal aneuploidies because of advanced maternal age Non-invasive Maternal serum alpha-fetoprotein (MSADP): measured during second trimester as a screening for NTDs (trisomy, particularly in trisomy 21) 1 st Trimester screening: 11 and 13 weeks of gestation; relies on 1) quantifying levels of certain substance in maternal serum 2) measuring subcutaneous edema of the fetal neck by highly targeted ultrasonographic exam; Nuchal Translucency, pregnancy-associated plasmas protein A (PAPP-A), human chorionic gonadotropin (hCG) 2 nd Trimester screening: MSAFP, -hCG, un-conjugated estriol (this is referred as Triple Test , inhibin A Quad Test )...
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This note was uploaded on 01/24/2011 for the course STAT 250 taught by Professor Tba during the Spring '09 term at Purdue University-West Lafayette.
- Spring '09