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Table 1 Arterial blood gas reports

From: Severe lactic acidosis and acute renal failure following ingestion of metformin and kerosene oil: a case report

  Duration from the time of poisoning
  11 hours 15 hours 24 hours 28 hours 48 hours 51 hours 67 hours
pH 7.081 7.167   7.1 7.386 7.42 7.43
Bicarbonate, mmol/L 4 4   < 3 16.5 23.4 21.9
Base excess, mmol/L -25.9 24.4   NA -8.6 -1.1 -2.4
Lactate, mg/dL    59.96     
  1. pH and serum bicarbonate levels progressively decreased until 28 hours after self-poisoning and improved gradually with recurrent hemodialysis. NA, not applicable.