Table 1.
Variable | Normal =2 | Abnormal =0 |
AFV | 1 pocket > 3 cm | reduced or absent |
FBM | >1 FBM / 30 minute, hiccup | continuous FBM, absent FBM |
FM | > 4 FM / 30 minute | < 3 FM / 30 minute |
FT | active extension, flexion, opening–closing hands | low velocity movement, flaccid posture |
CTG | >2 accelerations + palpated fetal movement / 20 minute | absent acceleration or CTG deceleration |
AFV, amniotic fluid volume; FBM, fetal breathing movements; FM, fetal body/limb movements; FT, fetal tone; CTG, cardiotocography (fetal heart rate).The Fetal Biophysical Profile Scoring System is a composite of variables and should be used as part of comprehensive fetal assessment in association with other available information. It has the lowest false–negative rate of any contemporary ante–partum testing scheme.22