Final answer:
Among the options provided, postdate pregnancy is typically associated with oligohydramnios but is not a nonanomalous condition, making it the exception to the nonanomalous conditions causing oligohydramnios.
Step-by-step explanation:
Nonanomalous conditions causing oligohydramnios include several factors that can lead to a decrease in amniotic fluid volume surrounding the fetus during pregnancy. Oligohydramnios can be caused by various conditions including:
- Dysplastic kidney, where there is abnormal development of the kidney which can affect urine output.
- Premature Rupture of Membranes (PROM), which is the leaking or breaking of the amniotic sac before labor begins.
- Intrauterine Growth Restriction (IUGR), which is when the fetus is not growing at a normal rate inside the womb, potentially impacting amniotic fluid levels.
However, postdate pregnancy, which is a pregnancy that goes beyond 42 weeks gestation, is typically associated with oligohydramnios but is not a nonanomalous condition. Therefore, the correct answer to which of the following nonanomalous conditions do not include causing oligohydramnios is d. Postdate pregnancy.