The Best Advice You Could Ever Get About anion gap with K tool
https://www.4shared.com/office/w-6DGTrPfa/pdf-49518-88017.html
Anion Gap Calculator including potassium added for fast, precise electrolyte analysis and metabolic acidosis evaluation. Useful for clinicians looking for a reliable lab calculator with sodium, chloride, bicarbonate, and potassium values.