<prompt> All the following are to be monitored during Magnesium sulfate prophylaxis in impending eclampsia ExceptPatellar reflexRespiratory RateUrine outputSerum magnesium level  <response>: Magnesium sulfate toxicity:Therapeutic levels: 4-5meqlThe first sign of impending toxicity: 8-10meql Deep tendon reflexes should be presentRespiratory depression or paralysis: 12meql Respiratory rate: 14breathsmin; Pulse oximetry: 96Urine output: at least 30mlhrFetal side effects : loss of fetal muscle tone and lethargyRef: William;s Obstetrics; 24th edition; Chapter 40 