Patient's question:
Now it is 33+6 weeks, biparietal diameter 85.0 mm, femur length 58.4 mm, humerus diameter 52.4 mm, fetal weight 1706+297g. Is this normal??? Urgent??? What kind of assistance is needed: laboratory tests, review of test results (please create a medical record below):Doctor's answer:
Hello, biparietal diameter is 4.3 cm, consistent with the size of 18 weeks of pregnancy; femur length is 1.8 cm, consistent with the size of 15 weeks of pregnancy. The normal reference values at 17 weeks of pregnancy are: the average biparietal diameter is 3.97 ± 0.44 cm, and the femur length is 2.52 ± 0.44 cm. Your child's legs are indeed shorter than the normal values. It is possible that this is due to measurement error. Short femurs are not necessarily related to calcium deficiency. Most mothers experience this issue of short legs during ultrasound examinations, and most of them are normal after birth. The shortness of the legs is related to the angle during BC (biometry of the fetus) and the fetal position.