Fig. 1
From: Plasma volume expansion reveals hidden metabolic acidosis in patients with diabetic ketoacidosis
Distribution of Na–Cl gap values. Boxplot showing values for the Na–Cl gap during the experiment. t1 at admission to intensive care, t1corr the same values after correction for hypovolemia, t2 values at the end of a 1 L infusion of 0.9% saline over 30 min on Day 1, t3 and t4 values before and just after infusion of another liter of saline on Day 2. At t3, patients were considered to be normovolemic. Horizontal bar represents the Na–Cl gap defined as normal, i.e., 37 mmol/L