This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abnormal labor, Subject name: Gynaecology & Obstetrics
Hypeonic dysfunctional labour is generally characterised by: 
Select and explain. 
A. Rapid cervical dilatation, B. Less pain In labour, C. Responds ourably to oxytocin stimulation, D. Needs adequate pain relief
D: Needs adequate pain relief
Answer: D: Needs adequate pain relief 
Explanation: Hypeonic state of uterus or Imcordinate uterine action : Patient is in agony with unbearable pain referred to back Oxytocin cause fetal tachycardia due to fetal stress Inappropriate dilatation of cervix Uterus is tender and gentle manipulation excites hardening of the uterus with pain. Ref: Dutta Obs 9e pg 337.