<prompt> MgSO4 can cause all EXCEPT:CardiotoxicityRenal failureRespiratory depressionAbnormal DTR  <response>: Ans. a cardiotoxicity. Ref. KD Tripathi, 4th ed., 331, 659MAGNESIUM SULFATE Is not a hypotensive agent. Works as a centrally acting anticonvulsant. The therapeutic level of serum magnesium is 4--7 mEqL. Maternal Side Effects Related To MgSO4 - Common- Flushing- Sense of warmth- Headache- Nystagmus- Nausea- Dizziness- Lethargy Uncommon- Pulmonary edema- Neuromuscular blockage- Osteopenia Toxicity of MgSO4- Respiratory rate 12- DTRs not detectable usually noted when Magnesium level 10 mEqL- Altered sensorium- Urine output 25-30 cchour Antidote: 10 ml of 10 solution of calcium gluconate IV over 3 minutes. 