Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/14/2025

Initial Management of Hypertension

Diagnosis Confirmation

  • Confirm hypertension diagnosis with repeated office BP measurements ≥140/90 mmHg, ideally validated by home BP ≥135/85 mmHg or 24-hour ambulatory BP ≥130/80 mmHg 1, 3
  • Use validated automated upper arm cuff device with appropriate cuff size 1
  • Measure BP in both arms at first visit; if consistent difference exists, use the arm with higher BP for future measurements 3

Initial Pharmacological Approach

  • For Black patients, first-line therapy should include a low-dose ARB plus either a dihydropyridine calcium channel blocker (DHP-CCB) or a thiazide-like diuretic 1, 2
  • CCBs and thiazide diuretics are more effective in lowering blood pressure in African Americans than RAS inhibitors or beta blockers 2
  • Amlodipine is as effective as chlorthalidone and more effective than lisinopril in reducing BP, cardiovascular disease, and stroke events in African Americans 2

Treatment Algorithm Based on BP Level

  • If BP remains uncontrolled after initial therapy, increase to full dose 1
  • Add third agent (diuretic or ARB/ACEI if not already included) 1, 2

Special Considerations

  • For those with chronic kidney disease and proteinuria, include an ACE inhibitor or ARB in the regimen 2
  • African Americans have greater risk of angioedema with ACE inhibitors, making ARBs often preferable 2

Monitoring and Follow-up

  • Target BP: <130/80 mmHg 3, 2
  • Monitor BP control and aim to achieve target within 3 months 3
  • If BP remains uncontrolled despite optimized triple therapy, refer to a specialist with hypertension expertise 3

Treatment Goals

  • Aim to reduce BP by at least 20/10 mmHg from baseline 1, 3