The anion gap.
D000838:Anions; D001639:Bicarbonates / Q000032:analysis; D002713:Chlorine / Q000032:analysis; D006801:Humans; D008792:Metric System; D011485:Protein Binding; D014883:Water-Electrolyte Imbalance / Q000175:diagnosis*
D000838:Anions; D001639:Bicarbonates; D002713:Chlorine