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When does preeclampsia typically develop during pregnancy?

  1. Before the 20th week

  2. After the 30th week

  3. During delivery

  4. After childbirth

The correct answer is: After the 30th week

Preeclampsia typically develops after the 20th week of pregnancy, often occurring in the second half of gestation, with the risk increasing after the 30th week. This condition is marked by high blood pressure and usually protein in the urine, which can pose serious risks for both the mother and the fetus. The timing is critical; preeclampsia is not commonly diagnosed before the 20th week, as this is before the placenta has fully developed and begun to exert its influence on the maternal circulation. Instances of preeclampsia developing during delivery or immediately after childbirth are also less common; while there is a related condition known as postpartum preeclampsia, it is distinct from classic preeclampsia encountered during pregnancy. Understanding the typical timeline for the onset of preeclampsia is essential for monitoring and managing the health of both mother and baby throughout pregnancy.