 Fundal height by gestational age. Image by Derivative by Mikael Häggström from original by Ulysse2121, via Wikimedia Commons. Licensed CC BY-SA 3.0 |
Donald HeightFundal height Fundal height Measure of fetal growth Fundal height, or McDonald's rule, is a measurement of the size of the uterus used to assess fetal growth and development during pregnancy. It is measured from the top of the mother's uterus to the top of the mother's pubic symphysis. Fundal height, when expressed in centimeters, roughly corresponds to gestational age in weeks between 16 and 36 weeks for a vertex fetus. When a tape measure is unavailable, finger widths are used to estimate centimeter (week) distances from a corresponding anatomical landmark. However, landmark distances from the pubic symphysis are highly variable depending on body type. In clinical practice, recording the actual fundal height measurement from the palpable top of the… (Source: Wikipedia)
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