Hadlock

Reference table that estimates fetal weight according to gestational age.

To calculate the Fetal Weight estimate, one of the methods most used by health professionals is the Hadlock Formula [Log10(PE)=1.3596+(0.00061xDBPxCA)+(0.424xCA)+(1.74xCF) +(0.0064xCC)-(0.00386xCAxCF)] which considers four parameters (DBP, CC, CA and CF).

Fetal biometry is used to obtain the following measurements: biparietal diameter (BPD), head circumference (CC), abdominal circumference (AC) and femur length (CF).

The application presents the Hadlock Table, as a quick and summarized guide, helping in the assessment.