<prompt> Which of the following strategies for administering magnesium sulfate for eclampsia prophylaxis should be used in the setting of an elevated serum creatinineGive 3g loading dose followed by 2ghr infusionGive 3g loading dose, check magnesium level, and then titrate infusion rateGive no loading dose and start infusion at 2ghrNone of the above  <response>: In case of severe renal dysfunction , only loading dose of magnesium sulfate is required to produce steady state therapeutic level. 