Oligohydramnios is most commonly associated with which of the following?

Oligohydramnios is most commonly associated with which of the following?

• A. Excessive fetal movements
• B. Fetal kidney anomalies or rupture of membranes
• C. Placental previa
• D. Maternal anemia

Answer: (B)

Oligohydramnios means there is too little amniotic fluid. After midgestation, the fetal urine becomes the main source of amniotic fluid, so anything that reduces urine production or causes leakage of fluid will lower amniotic fluid levels. Fetal kidney anomalies impair urine output, and rupture of membranes allows fluid to escape, both leading to oligohydramnios. The other options don’t directly affect the amount of amniotic fluid. For example, excessive fetal movements don’t cause low fluid, placenta previa presents with bleeding risks, and maternal anemia isn’t related to amniotic fluid volume.

Oligohydramnios means there is too little amniotic fluid. After midgestation, the fetal urine becomes the main source of amniotic fluid, so anything that reduces urine production or causes leakage of fluid will lower amniotic fluid levels. Fetal kidney anomalies impair urine output, and rupture of membranes allows fluid to escape, both leading to oligohydramnios. The other options don’t directly affect the amount of amniotic fluid. For example, excessive fetal movements don’t cause low fluid, placenta previa presents with bleeding risks, and maternal anemia isn’t related to amniotic fluid volume.