Staying Alive 3: High Blood Pressure Secondary Causes
Excess aldosterone Primary aldosteronism — excess production of this adrenal hormone — raises blood pressure in 5–10% of patients with Stage 1 hypertension and 11–22% of those with Stage 2. Extra blood tests: plasma aldosterone, renin activity, and the aldosterone-to-renin ratio. Patients with primary aldosteronism typically have suppressed renin activity (< 1 ng/ml/h). Medicines interfere…