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Table 1 Patient 1 – Arterial blood gas results at admission, 4 h and 12 h after initiation of continuous venovenous hemodiafiltration

From: Metformin-induced lactic acidosis: a case series

  0 h 4 h 12 h
pH 6.8 7.434 7.4
PaCO 2 (mmHg) 8.2 15 22.9
PaO 2 (mmHg) 146 125 108.4
SaO 2 (%) 97.10 99.5 98.9
HCO 3 - (mEq/L) 1.4 10.1 14.1
Lactate (mmol/L) 16 7.3 5