Amniotic Fluid Evaluation

Polyhydramnios = Too much fluid (usually 25+ cm AFI)

Oligohydramnios = Too little fluid (AFI under 5 cm and/or no pocket over 2 cm)

Because the AFI has too many "false positive" results (too many people diagnosed with too low fluid when in fact the outcome was OK), the single pocket amniotic fluid evaluation has recently been found more reliable than the AFI. Any single pocket that's over 2 cm is considered adequate.

Read more about the amniotic fluid HERE