<prompt> Which of the following is not an etiology of cord prolapse?Contracted pelvisHydramniosPlacenta preDextrarotated uterus  <response>: Dextrarotated uterus is a normal physiological changed seen in pregnancy. ETIOLOGY: Malpresentations:transverse 5-10 and breech 3 Contracted pelvis Prematurity Twins Hydramnios Placental factor:placenta pre Iatrogenic: lLow rupture of the membranes, manual rotation of the head, ECV, IPV Stabilizing induction 