This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Post Paum Haemorrhage (This better stop now !), Subject name: Gynaecology & Obstetrics
Which of the following complications during pregnancy is least likely to increase risk of post paum atonicity of uterus 
Select and explain. 
A. Hypeension, B. Macrosomia, C. Twin pregnancy, D. Hydramnios
A: Hypeension
Answer: A: Hypeension 
Explanation: Hypeension is a risk factor of PPH secondary to decreased coagulation , hepatocellular damage or thrombocytopenia and not due atonicity per say Atonicity causes about 80% of PPH. The causes of atonicity can be : Large uterus- macrosomia, twins, polyhydramnios Infections- PROM, Chorio amnionitis Prolonged labour