This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Indications for caesarean section in pregnancy are all except: 
Select and explain. 
A. Eisenmenger's syndrome, B. Aortic stenosis, C. MR, D. Aortic regurgitation
A: Eisenmenger's syndrome
Answer: A: Eisenmenger's syndrome 
Explanation: Cardiac indications for cesarean section:

Aortic aneurysm or dilated aortic root ≥ 4 cm
Marfans syndrome with aortic involvement
Severe symptomatic aortic stenosis
Acute severe congestive heart failure
Recent MI
Need for emergency valve replacement immediately after delievery
A patient who is fully anticoagulated with warfarin at the time of labor needs to be counseled for cesarean section because the baby is also anticoagulated and vaginal delivery carries increase risk to the fetus of intracranial hemorrhage.