What is the risk of downs syndrome in a 35-year-old pregnant woman?: (A) 1 in 75, (B) 1 in 100, (C) 1 in 250, (D) 1 in 1000
Answer is C. Age of the motherRisk of Down&;s syndrome351 in 250361 in 192371 in 149381 in 115391 in 89401 in 69Reference: William's obstetrics; 25th edition; Chapter 14; Prenatal Diagnosis