This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
All of the following can be administered in acute highpeension during labour except 
Select and explain. 
A. IV labetalol, B. IV nitroprusside, C. IV hydralazine, D. IV esmolol
B: IV nitroprusside
Answer: B: IV nitroprusside 
Explanation: Ref - KDT7/e p572 Sodium nitroprusside is contra indicated in eslampsia