17 Reasons Why You Should Ignore Na − (Cl + HCO3) anion gap
https://anion-gap-checker122.evergrovio.com/posts/does-metformin-lead-to-a-elevated-anion-gap
Use this anion gap calculator with chloride to quickly check metabolic acidosis, electrolyte imbalance, and acid-base status from sodium, bicarbonate, and chloride values