RAAS Triple-A illustrations visualizing serum concentrations of Ang I, Ang II and aldosterone. Numbers refer to median serum equilibrium concentrations in (pmol/L). Median valued for patient groups without renin angiotensin-inhibiting therapy (n = 39), on ACEi therapy (n = 45) and on ARB treatment (n = 66) are shown as indicated. Corresponding median values for PRA-S, ACE-S and AA2-Ratio are shown in (pmol/L), ((pmol/L)/(pmol/L)) and ((pmol/L)/(pmol/L)), respectively. RAASi indicates renin angiotensin system inhibitors; ACEi, angiotensin converting enzyme inhibitors; ARB, angiotensin receptor blockers; Ang, angiotensin; REN, renin; ACE, angiotensin converting enzyme; AT1R, angiotensin II type 1 receptor; Aldo, aldosterone; PRA-S: plasma renin activity in (pmol/L); ACE-S: ACE activity in ((pmol/L)/(pmol/L)); AA2-Ratio: Aldosterone-to-Ang II ratio in ((pmol/L)/(pmol/L)).