<prompt> True regarding hypeonic dysfunction of labor isMost commonly associated with occipitoposterior positionOxytocin administration is beneficial with occipitoposterior positionOccurs in 1st stage of laborLeads to rapid dilatation of cervix  <response>: Hypeonic uterine dysfunction : The uterine contractions are incoordinated and increased in frequency Most common causes are OP position Nulliparous women Most commonly associated with late active dysfunction Oxytocin infusion may lead to hyperstimulation or tachysystole . Ref: Dutta Obs 9e pg 337. 