The renin-angiotensin-aldosterone system—what is it, and how does it affect blood pressure?

Peter Carroll 01/04/2026

Back to Basics with Peter Carroll The aim of this series of articles is to revisit and discuss some fundamental pharmacological, physiological and therapeutic concepts with the overall objective of “keeping it simple”. What is the renin-angiotensin-aldosterone system (RAAS) and how does it affect blood pressure? By Professor Peter Carroll AM, School of Medicine, University

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