ATI MATERNAL NEWBORN PROCTORED 2019 EXAM REVIEW

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1. Placenta Previa The two most clinically significant causes of bleeding in the second half of pregnancy are: placenta previa and placentae In placenta previa, the placenta is implanted in the low... er uterine segment rather than the upper portion of the uterus The placenta is implanted in the lower segment of the uterus or over the internal cervical os. Bleeding begins – may be either scanty or perfused Placenta previa is categorized as being: o Low lying – placenta is in the lower uterine segment but DOES NOT COVER THE OS o Partial – internal os is partially covered o Marginal – edge of placenta is covered o Complete – internal os is covered CAUSE OF PLACENTA PREVIA IS UNKNOWN Women at higher risk are: Women of African descent Women who have undergone prior C-section Other risk factors: High gravidity High parity Advanced maternal age Previous miscarriage Previous induced abortion Cigarette smoking Male fetus [Show More]

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