Amniotic Fluid Index (AFI) Normal MeasurementsThis is a featured page

Amniotic Fluid Index (AFI)

  • Sum of the largest vertical depth of largest pool in each quadrant (note slim “slivers” of fluid, i.e. <1cm wide, should not be measured)
  • Subjective assessment by an experienced sonographer/sonologist has been demonstrated to be as accurate as AFI.
  • An abnormal AFI with a normal subjective assessment should be treated with caution
  • AFI varies with gestational age, therefore refer to chart. Measurements below the 2.5% or above 97.5% are significant
  • If formal AFI not possible, “deepest pocket” x3 approximates to the AFI


.... Go back to normal sonographic measurements

Latest page update: made by AndyC , Mar 12 2009, 2:17 AM EDT (about this update About This Update AndyC incorrect - AndyC

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