Bishop Score or Prelabor Scoring
Bishop score is a pre-labour scoring system that helps to assist in predicting whether induction of labor will be required during parturition. It uses several clinically measurable parameters to calulate a score.
Components Included to Calculate the score are
- Cervical dilation
- Cervical effacement
- Cervical consistency
- Cervical position
- Fetal station
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Total Score =13
Favourable Score= 6-13
Unfavourable Score= 0-5
A score of 5 or less suggests that labour is unlikely to start without induction. Use of PGE2 – Dinopristone Intracervical 0.5 mg gel.
A score of 9 or more indicates that labour will most likely commence spontaneously.
Modified Bishop score
According to the Modified Bishop’s pre-induction cervical scoring system, effacement has been replaced by cervical length in cm, with scores as follows- 0>3cm, 1>2cm, 2>1cm, 3>0cm