“A new US study showed that vitamin D lowers blood pressure in obese and older people in moderate doses, such as at the US ...

Primary aldosteronism treatment response was associated with higher plasma renin activity and serum potassium levels and lower aldosterone.

Two of these consequences are increased blood pressure and suppressed plasma renin. 1 At similar blood pressures, patients with primary aldosteronism treated with standard antihypertensive medications ...

If the clinical history is not helpful (e.g., there is no documentation of the efficacy of drug "A"), then measuring a renin level (either plasma renin activity or direct renin) can be helpful ...