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
IV loading dose of MgSo4 prophylaxis in pre-eclampsia? 
Select and explain. 
A. 8ml MgSo4+10ml of NS, B. 10ml MgSo4+10ml of NS, C. 8ml MgSo4+12ml of NS, D. 12ml MgSo4+8 ml of NS
C: 8ml MgSo4+12ml of NS
Answer: C: 8ml MgSo4+12ml of NS 
Explanation: Ans. C.8ml MgSo4+12ml of NSDose: 4-5 g (diluted in 250 mL NS/D5W) IV in combination with either :Up to 10 g (10 mL of undiluted 50% solution) divided and administered IM into each buttock orAfter initial IV dose, 1-3 g/hr IV.MgSO4 is continued 24 hours after delivery to prevent postpaum eclampsia