Fig. 2From: Association of serum sodium minus chloride level at initiation of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers and hyperkalemia in patients with CKD: a case control studyDistribution of serum sodium minus chloride level at the initiation of ACE-I or ARB. At the initiation of ACE-I or ARB, [Na+] − [Cl−] was almost normally distributed. ACE-I, angiotensin-converting enzyme inhibitor; ARB, angiotensin receptor blocker; [Na+], serum sodium level; [Cl−], serum chloride levelBack to article page