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Table 2 Patient 2 – 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 6.7 7.34 7.43
PaCO 2 (mmHg) 32.4 23.1 29.8
PaO 2 (mmHg) 68.2 62 101.4
SaO 2 (%) 77.1 93.1 97.2
HCO 3 - (mEq/L) 5 12 15
Lactate (mmol/L) 18 9.8 3.4