ogression and resumed to the original levels when patients recovered (pre-infection: 3.5 (3.0–4.4); on admission: 2.8 (2.3–3.1), p < 0.01; progression: 2.5 (2.3–3.0); discharge: 3.6 (2.7–4.1); median (IQR), in mmol/L). In