Advanced
Technical
In the Industry Vocabulary Test
oligohydramnios
Pronunciation: oh-li-go-hi-DRAM-nee-os
Abnormally low levels of amniotic fluid during pregnancy.
Full Definition
Oligohydramnios refers to decreased amniotic fluid volume, typically defined as an amniotic fluid index (AFI) less than 5cm or deepest vertical pocket less than 2cm. This condition can result from fetal kidney abnormalities, growth restriction, or placental insufficiency. It may lead to complications including pulmonary hypoplasia, skeletal deformities, and increased risk of cord compression during labor.
Usage
Usage note: Always lowercase unless beginning a sentence. Opposite of polyhydramnios.
In Context
- "Severe oligohydramnios was detected at 32 weeks, raising concerns about fetal renal function." — Ultrasound report
- "The presence of oligohydramnios necessitated closer fetal monitoring and consideration of early delivery." — Clinical assessment
Also known as
oligamnios
Contrasted with
polyhydramnios
Don't confuse with
polyhydramnios
anhydramnios