EFBW: Estimated Fetal Body Weight

Estimated Fetal Body Weight (EFBW) is a term used in pregnancy to estimate the weight of the fetus. It is an important parameter that helps doctors to evaluate the growth of the baby and ensure that it is developing normally. EFBW is calculated using ultrasound measurements of various fetal parameters.

Calculation of EFBW:

EFBW is calculated using the following parameters:

1. Biparietal diameter (BPD): The distance between the two sides of the fetal head.

2. Head circumference (HC): The circumference of the fetal head.

3. Abdominal circumference (AC): The circumference of the fetal abdomen.

4. Femur length (FL): The length of the fetal femur bone.

The EFBW is calculated using the following formula:

EFBW = 1.07 x ((BPD x HC x AC) + (FL x FL x FL)) - 3.58

Interpretation of EFBW:

EFBW is used to evaluate the growth of the fetus and determine if the baby is developing normally. The following are the different interpretations of EFBW:

1. Small for gestational age (SGA): EFBW less than 10th percentile for gestational age.

2. Appropriate for gestational age (AGA): EFBW between 10th and 90th percentile for gestational age.

3. Large for gestational age (LGA): EFBW greater than 90th percentile for gestational age.

Clinical significance:

EFBW is an important parameter that helps doctors to evaluate the growth of the fetus and ensure that it is developing normally. If the EFBW is abnormal, it may indicate a problem with the pregnancy, such as intrauterine growth restriction (IUGR), gestational diabetes, or other fetal abnormalities. Therefore, it is important to monitor the EFBW throughout the pregnancy to ensure that the baby is developing normally.

The Full Form of EFBW is Estimated Fetal Birth Weight.