The Practitioner Is Preparing to Measure Amniotic Volume

The practitioner is preparing to measure amniotic volume. Which method, if used, is the most accurate when assessing for oligohydramnios?

A) Choose the first pocket of amniotic fluid found and measure it.
B) Locate multiple amniotic fluid pockets and use the average of the measurements.
C) Find the deepest vertical pocket of amniotic fluid and measure it.
D) Determine the volume of four separate pockets and use the sum of the measures.