[RA-02] Anion gap: no magic number!

Anion gap (AG) is a parameter that indicates the difference or gap between negatively and positively charged electrolytes. It is primarily used in the differential diagnosis of metabolic acidosis and may be used in clinical laboratories to identify analytical errors. The AG was calcolated using sodium (Na+), chloride (Cl-) and bicarbonate (HCO3-). Some laboratories add potassium. In the 1970s,...