Table 6.1-1. Interpretation of the ARR

Renin measurement methods and units

Weak positive screening result

Strong positive screening result

Plasma renin activity (ng/mL/h)

ARR 550-750

ARR >750

Renin concentration (mIU/L)

ARR 60-90

ARR >90

Renin concentration (ng/L)

ARR 100-144

ARR >144

ARR, aldosterone-to-renin ratio.