Table 2: Laboratory investigations of acid-base disturbances
Arterial Blood:
pH
pCO
2
Bicarbonate
Anion gap
Organic acids: e.g. lactic acid, a-hydroxybutyrate
Urine:
Ketones
pH (for renal tubular acidosis)
Ammonium (for renal tubular acidosis)
Anion gap (for renal tubular acidosis)
Bicarbonate (for renal tubular acidosis)