The risk factors for placenta pre include all except?
High-Yield Explanation
Young maternal age is not risk factor for placenta pre , whereas advanced maternal age is a risk factor. Risk factor for placenta Pre: Prior history of placenta pre Multifetal gestation: Due to larger placental area Maternal age: Increasing frequency with increasing maternal age Multiparity: Increasing frequency with increasing parity Cigarette smoking: Increased frequency in women who smoke (2X) Elevated prenatal screening MSAFP levels: Unexplained abnormally elevated prenatal screening levels of maternal serum alpha-fetoprotein (MSAFP) are at increased risk of pre. Ref: Williams Obstetrics 25th edition PGno: 775