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AMNIOTIC FLUID VOLUME:

Use maximum vertical pocket (MVP) preferentially as quantification for amniotic fluid volume. Normal amniotic fluid volume corresponds to an MVP between 2 – 8 centimeters. Oligohydramnios corresponds to an MVP less than 2.0 centimeters. In these situations, only the MVP shall be reported.

If the MVP is >8 cm, an amniotic fluid volume (AFI) is then obtained to confirm if polyhydramnios is present (>25 cm). If normal AFI, report the value of the AFI. I have instructed the sonographers to continue getting both measurements but the Radiologist should report the MVP or AFI appropriate for the volume calculated.