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The SFH is measured using a tape placed over the mother's abdomen. Duryea EL,et al., A revised birth weight reference for the United States. 2014 Jul;124(1):16-22.doi:10.1097/AOG.0000000000000345. The mother's bladder should be empty when the measurement is done.

Neither nor any other party involved in the preparation or publication of this site shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material. al., Evaluating the thresholds of abnormal second trimester multiple marker screening tests associated with intra-uterine growth restriction.

Measurement of the symphysis-fundal height (SFH) is a common screening method used to estimate the gestational age and fetal growth after 24 weeks gestation.

Many regression equations are available using various combinations of parameters to estimate the gestational age. et al., Sonographic estimation of fetal age and weight.

Some clinicians use the unweighted mean of the 4 most commonly used biometric parameters ( biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur length (FL) ) to establish a gestational age [22] Ultrasound Estimate of Fetal Weight In practice the most common equations for calculating the estimated fetal weight (EFW) are reported to be the Shepard and Hadlock formulas [5,8,9]: Shepard: Log 10 (weight) = -1.7492 0.166*BPD 0.046*AC - 2.646*(AC*BPD)/1,000 Hadlock 1: Log 10 (weight) = 1.304 0.05281*Ac 0.1938*FL -0.004*AC*FL Hadlock 2: Log 10 (weight) = 1.335-0.0034*AC*FL 0.0316*BPD 0.0457*AC 0.1623*FL Hadlock 3: Log 10 (weight) =1.326-0.00326 *AC*FL 0.0107*HC 0.0438*AC 0.158*FL Hadlock 4: Log10 (weight) =1.3596 -0.00386* AC * FL 0.0064*HC 0.00061*BPD*AC 0.0424*AC 0.174*FL Regardless of the formula used the accuracy of the sonographic estimate of the EFW is affected by supoptimal imaging and biological variation . Shepard MJ, Richards VA, Berkowitz RL, et al: An evaluationof two equations for predicting fetal weight by ultrasound.

Most caregivers will record their patient's fundal height on every prenatal visit.

Measuring the fundal height can be an indicator of proper fetal growth and amniotic fluid development. Read more See 1 more doctor answer Ultrasound is more accurate compared to measurement of the fundal height.

With your OB or the peri-natologist that may be involved, do not know why you would be on Estradiol when pregnant and ia ssume u are on im Progesterone or Progesterone gel to prevent premature labor. Read more Fundal height generally approximates but does not always correlate to the actual gestational age.

The measurement that you describe, I am assuming, is an ultrasound that is also an approximation. Read more As long as us looks ok, and all evidence shows baby is healthy and growing, thats good. Read more Fundal height refers to the location of the top of your uterus.

Correct evaluation depends on the accuracy of the gestational age being used , the precision of the weight measurements , and using a weight curve that represents the population being studied. Sonographic evaluation of intrauterine growth retardation.

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