AFI
Medical abbreviation · Obstetrics & Gynecology
| Stands for | Amniotic fluid index |
|---|---|
| Categories | Medical |
AFI stands for Amniotic fluid index, an obstetrics & gynecology abbreviation.
Ultrasound estimate of amniotic fluid volume obtained by adding the deepest vertical fluid pockets in four quadrants of the uterus, in centimeters. Values of 5 cm or less suggest oligohydramnios, and 24–25 cm or more polyhydramnios.
Example: AFI 4.2 cm at 39 weeks, oligohydramnios; recommend induction.
Usage notes
Many guidelines now prefer the single deepest pocket (under 2 cm defines oligohydramnios) because using AFI leads to more interventions without better outcomes. Low fluid can reflect ruptured membranes, placental insufficiency or fetal kidney problems. Excess fluid is associated with diabetes and some fetal anomalies.
Related abbreviations
More obstetrics & gynecology abbreviations
- AGA – Appropriate for gestational age
- AMA – Advanced maternal age
- AMH – Anti-Müllerian hormone
- AROM – Artificial rupture of membranes
- ART – Assisted reproductive technology
- ASC-US – Atypical squamous cells of undetermined significance
- AUB – Abnormal uterine bleeding
- BCP – Birth control pill
- BPD – Biparietal diameter
- BPP – Biophysical profile
- BSO – Bilateral salpingo-oophorectomy
- BTL – Bilateral tubal ligation
See all 89 obstetrics & gynecology abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.