Biochemical examination indicated hypokalemia (2.67 mmol/L; reference value, 3.5–5.3 mmol/L), low PRA (1.0 μIU/mL; reference value, 2.8–39.9 μIU/mL), low PAC (1.0 ng/dL; reference value, 3.0–23.6 ng/dL), and metabolic alkalosis (HCO3–, 28.6 mmol/L; reference value, 21.0–27.0 mmol/L; Actual Base Excess, 4.3 mmol/L; reference value, −3.0 to 3.0 mmol/L). Here, S100A6 is linked to Hypokalemia.