This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Classification, Symptoms, and Signs, Subject name: Gynaecology & Obstetrics
Least chance of cord prolapse is seen in - 
Select and explain. 
A. Vertex, B. Breech, C. Transverse, D. Compound
A: Vertex
Answer: A: Vertex 
Explanation: Ans. is 'a' i.e., Vertex Factors associated with cord prolapseo Malpresentations - commonest being transverse (5-10%) & breech (3%) especially with flexed legs or footling and compound presentation (10%)o Contracted pelviso Prematurityo Twinso Hydramnioso Placental factors - minor degree of placenta previa with marginal insertion of cord or long cord,o Iatrogenic - low rupture of membranes, manual rotation of head, EC V, IP Vo Stabilising induction