Hyperlactatemia =<unk> ctate >2 mEq/L<unk>  =<unk> ctate >4 mEq/L
Beta agonists or beta stimulation
Extreme exercise
Seizures, immediate post-ictal period
Hepatic failure<unk> ctate ringer's solution unlikely to cause false positive except in hepatic failure<unk> ctate ringer's solution unlikely to cause false positive except in hepatic failure
Lactic acidosis
Type A 
Metabolic acidosis
Hypovolemia
Metabolic alkalosis
Cardiac failure
Ketonemia
Sepsis