I want to mention one interesting fact here. Namely, it is very often that the second and next kid has birth weight bigger than the previous ones. The reason that firstborns are less likely to be overweight is unclear. Also, it is normal that the weight of babies is less than average in multiple pregnancies. <\/p>\n\n\n\n

What if fetal weight deviates from the average fetal weight? <\/h2>\n\n\n\n

If an ultrasound shows that the weight of your baby deviates from the average weight, first, you should always make the error correction (plus or minus 500 g). Secondly, you should know that babies grow up in “jumps”. For example, a baby who has a weight below average at 34 weeks can reach a normal average weight already at 35 weeks.<\/p>\n\n\n\n

However, a conclusion about fetal health can not be made according to one ultrasound. On the contrary, that requires several controls over several weeks. But, if the weight of your baby is different from the average fetal weight significantly and after several measurements, looking for the causes of that is necessary. Therefore, your doctor will direct you to do some additional examination.<\/p>\n\n\n\n

Additional examinations should eliminate or identify possible fetal pathologies, including genetic disorders, the presence or absence of intrauterine infections, \u2026 Of course, the mother should also do blood, urine, and infection tests.<\/p>\n\n\n\n

Surely, doctors will inform you of further examinations the best. What you need to do is to avoid stress and to think about your condition positively.<\/p>\n\n\n\n

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FAQ<\/h2>\n\n\n\n

What is the Shepard formula?<\/strong>

\ud83c\udf93 Shepard formula<\/strong> is used to ultrasound estimate of fetal weight<\/strong> using BPD<\/strong> and AC<\/strong> parameters (Biparietal Diameter<\/strong> of your baby\u2019s head and Abdominal Circumference<\/strong>)Log 10 (fetal weight) = -1.7492+ 0.166BPD +0.046<\/em>AC – 2.646(AC<\/em>BPD)\/1,000<\/strong>These parameters are considered to be more accurate and simpler than others. Significant errors in estimation still occur and have been attributed to biologic variation (difference of somatic types), pathologic variations (fetal dystrophy, malformations, hypertrophy), subjective operator errors of measurement, or any combination of these.<\/p> <\/div>

How to use the BPD, HC, AC, FL calculator?<\/strong>

Just look at the ultrasound report that you get from the doctor. There are some parameters and measurements marked with BPD, HC, AC, FL<\/strong>. In order to calculate fetal weight<\/strong>, you will need the AC and BPD measurement<\/strong>.<\/p> <\/div>

What is BPD in ultrasound?<\/strong>

Biparietal Diameter (BPD)<\/strong>\u00a0– It is a measurement of the diameter across your developing baby’s skull, from one parietal bone to the other. The BPD is used to estimate fetal weight and gestational age. The BPD has been shown to be accurate in predicting gestational age from 14 to 20 weeks. The variability increases after this time.<\/p> <\/div>

What is AC in ultrasound?<\/strong>

Abdominal Circumference (AC)<\/strong>\u00a0– is one of the basic biometric parameters used to measure fetal size. Is measured in the transverse plane at the fetal liver, with the umbilical portion of the left portal vein in the center of the abdomen.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"

Following fetal weight is important in making an image of the development of a fetus. Thus too low weight or overweight of a fetus may indicate the presence of health problems in its or mother’s body. With that in mind, in my second pregnancy, I calculated the baby’s weight on my own after each ultrasound,…<\/p>\n","protected":false},"author":1,"featured_media":4621,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"_cloudinary_featured_overwrite":false},"categories":[107,348,9],"tags":[108],"yoast_head":"\n