Estimated fetal weight: Applicability to small- and large-for-gestational-age fetus

Authors

  • Joseph M. Miller Jr. MD,

    Corresponding author
    1. Departments of Obstetrics and Gynecology Louisiana State University Medical Center, New Orleans, Louisiana
    • Departments of Obstetrics and Gynecology Louisiana State University Medical Center, 1542 Tulane Avenue, New Orleans, Louisiana 70112
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  • Grace A. Kissling PhD,

    1. Biometry and Genetics, Louisiana State University Medical Center, New Orleans, Louisiana
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  • Haywood L. Brown MD,

    1. Departments of Obstetrics and Gynecology Louisiana State University Medical Center, New Orleans, Louisiana
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  • Harvey A. Gabert MD

    1. Departments of Obstetrics and Gynecology Louisiana State University Medical Center, New Orleans, Louisiana
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Abstract

Ultrasonic formulas using femur length and abdominal circumference with or without biparital diameter were found to be highly accurate in predicting the weight of normal-sized term infants. The small-for-gestational age fetus, however, was overestimated and the large-for-gestational-age fetus was underestimated. The fetal weight formulas tested that were appropriate for the entire study group were not applicable to those fetuses having altered growth.

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