According to the Pritchard regimen, which is used commonly in Indian practice for eclampsia, the total intramuscular loading dose of magnesium sulfate is:
- A 4 g intravenously plus 10 g intramuscularly, 5 g in each buttock ✓
- B 6 g intravenously over 20 minutes, no intramuscular component
- C 10 g intramuscularly alone, divided into two buttocks
- D 2 g intravenously every hour until seizures stop
Correct answer: A. 4 g intravenously plus 10 g intramuscularly, 5 g in each buttock
Explanation
The Pritchard regimen gives a 4 g intravenous loading dose over 5 to 10 minutes together with 10 g intramuscularly, 5 g into each buttock, a total loading dose of 14 g. Maintenance is 5 g intramuscularly every 4 hours alternating buttocks, continued for 24 hours after the last seizure or delivery. The 6 g intravenous loading dose belongs to the Zuspan regimen. Option D describes an unstructured infusion rather than a recognised regimen.
Reference: Fernando Arias' Practical Guide to High-Risk Pregnancy and Delivery, 5th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.