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Normal anion gap and its changes in high-anion gap-metabolic acidosis and normal-anion-gap metabolic acidosis

Graphical representation of the normal anion gap and its changes in high-anion gap-metabolic acidosis (HAGMA) and normal-anion-gap metabolic acidosis (NAGMA). The predominant cation (sodium) is compared with the sum of the common anions (bicarbonate and chloride), with the difference representing the "anion gap." (Figure by Agnibho Mondal on February 28, 2018. Creative Commons Attribution-Share Alike 4.0 International license.)

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