In the classic plasma renin activity assay that measures the main function of the enzyme and uses inhibitors of angiotensinase,what is actually measured at the end of the assay?

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In the classic plasma renin activity assay, the level of angiotensin I is measured at the end of the assay. This is because renin cleaves angiotensinogen to produce angiotensin I, which is further converted to angiotensin II by the angiotensin-converting enzyme. By inhibiting the angiotensin-converting enzyme, the assay specifically measures the activity of renin in cleaving angiotensinogen to produce angiotensin I.

In the Classic Plasma Renin Activity Assay That Measures the Main