ly at a rate not to exceed 1 g/min 2)Follow promptly with 10 g of 50% magnesium sulfate solution, one-half (5 g) injected deeply in the upper outer quadrant of both buttocks through a 3-inch-long, 20-gauge needle. (Addition of 1.0 mL of 2% lidocaine minimizes fort.)If convulsions persist after 15 min, give up to 2 g more intravenously as a 20% solution at a rate not to exceed 1 g/min.If the woman is large, up to 4 g may be given slowly 3)Every 4 hr thereafter give 5 g of a 50% solution of magnesium sulfate injected deeply in the upper outer quadrant of alternate buttocks, but only after ensuring that a. the patellar reflex is present b. respirations are not depressed c. urine output the previous 4 hr exceeded 100 mL 4)Magnesium sulfate is discontinued 24 hr after delivery.
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