This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: recent papers  obst, Subject name: Gynaecology & Obstetrics
[{'content': 'MgSO4 have no role in prevention of \nSelect and explain. \nA. Seizures in severe pre-eclampsia, B. RDS in premature baby, C. Recurrent seizures in eclampsia, D. Neuroprotection', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Magnesium sulphate: - Mechanism of action:- * Reduced presynaptic release of the neurotransmitter glutamate * Blockade of glutaminergic n-methyl-d-aspaate (nmda) receptor * Potentiation of adenosine action * Improved calcium buffering by mitochondria * Blockage of calcium entry voltage-gated channels Used for: - * Severe preeclampsia * Recurrent eclamptic seizures * Neuroprotection Must check: - * Urine output * Respiratory rate * Patellar reflexes Ref:- Williams obstetrics 25th Edition; Pg num:- 38/68', 'role': 'assistant'}]