CSTCST

IndicationIndication• High risk pregHigh risk preg• Induction of labInduction of lab

TechniqueTechnique

ContrindicationContrindication• Preterm labour.Preterm labour.• PromProm• Placenta previaPlacenta previa• Scarred uterusScarred uterus

InterpretationInterpretation Positive…>50% decelerationPositive…>50% deceleration NegativeNegative Equivocal suspiciousEquivocal suspicious Equivocal hyper-stimulatory….> 90s Equivocal hyper-stimulatory….> 90s

or freq contor freq cont Unsatisfactory. < 3 contUnsatisfactory. < 3 cont