ABGC Boards Prenatal Study Set (Guaranteed Pass!)

T21 Risk by Maternal Age correct answers Age-------------------------------Risk 30 --------------------------------1/952 (.1%) 35 --------------------------------1/385 (.3%) 37 --------------------------------1/227 (.4%) 40 --------------------------------1/106 (.9%) 43 --------------------------------1/50 (3.1%) Risk of Any Chrom Abnl by Maternal Age correct answers Age--------------------------------Risk 30---------------------------------1/384 (0.3%) 35---------------------------------1/202 (0.5%) 37---------------------------------1/129 (0.8%) 40---------------------------------1/65 (1.6%) 43---------------------------------1/32 (3.1%) Maternal Serum Quad Screen correct answers Measurement of biochemical analytes in maternal serum to provide adjusted risk for certain conditions. Performed during second trimester typically 14-21 weeks SLO vs XL ichthyosis, SLO has pre and postnatal growth restrictions correct answers Differentials for extremely low uE3 on QUAD screen and how can you differentiate Non-disjunction in Meiosis I correct answers What is the most common cause of aneuploidy Quad screen conditions correct answers -Open Neural tube defects - Down Syndrome - Trisomy 18 Quad screen analytes correct answers -AFP (alpha-fetoprotein) -hCG (human chorionic gonadotrophin): -uE3 (unconjugated estriol): - Inhibin Factors to take into account for Quad Screen correct answers Gestational Age: As this changes so does expected values of each analyte Weight: as maternal weight increases so does blood volume. Dilutes analytes Race: Different ethnic backgrounds can affected expected levels