Using ultrasound, your provider can take various measurements (head circumference and diameter, abdomen circumference, and femur length) and use them to estimate your baby's size. There are ...

In this case, the accuracy of the LMP and the accuracy of the ultrasound come into question ... FL = femur length; HC = head circumference. Reprinted with permission from Callen.

HC = head circumference. Reprinted with permission from Callen. [20] a These are indicators of conception age (menstrual age = conception age + 14 days). 1. Double-check and recalculate the LMP ...