Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

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

Last Updated: 9/22/2025

Initial Treatment Approach for Hypertension

Diagnosis and Lifestyle Modifications

  • The American Diabetes Association recommends beginning with lifestyle modifications as first-line therapy for 3-6 months before considering pharmacological treatment, unless blood pressure is severely elevated (≥140/90 mmHg), in which case add medication immediately alongside lifestyle changes 1, 2
  • Measure blood pressure at three separate visits using an appropriately sized cuff with the patient seated and relaxed 1
  • For adolescents ≥13 years, hypertension is defined as BP ≥130/80 mmHg or BP ≥95th percentile for age, sex, and height 1
  • Elevated blood pressure (prehypertension) is defined as BP 120-129/<80 mmHg or BP ≥90th percentile 1
  • Implement the DASH eating pattern emphasizing fruits and vegetables (8-10 servings/day) and low-fat dairy products (2-3 servings/day) 3, 2
  • Restrict sodium intake to <2,300 mg/day 2
  • Increase potassium intake through dietary sources 3, 2
  • Limit calories from fat to 25-30%, saturated fat to <7%, and avoid trans fats 1
  • Prescribe at least 150 minutes of moderate-intensity aerobic exercise per week 2
  • Limit alcohol to ≤2 drinks/day for men 2
  • Counsel on smoking cessation 2

Pharmacological Therapy

  • For confirmed hypertension (≥140/90 mmHg), begin pharmacological treatment immediately in addition to lifestyle modifications 1
  • ACE inhibitors are the preferred initial agent (e.g., lisinopril 5-10 mg once daily) 1
  • Angiotensin receptor blockers (ARBs) are an alternative if ACE inhibitor is not tolerated 1
  • Thiazide-type diuretics or calcium channel blockers are additional first-line options 4
  • Provide reproductive counseling before prescribing ACE inhibitors or ARBs due to teratogenic effects 1, 2

Monitoring and Titration

  • Check serum creatinine and potassium 7-14 days after initiating ACE inhibitor or ARB 2
  • Monitor for hyperkalemia with ACE inhibitors/ARBs or hypokalemia with diuretics 2
  • Goal is BP <120/80 mmHg or <90th percentile for age, sex, and height 1, 2
  • The International Society of Hypertension recommends targeting systolic BP 120-129 mmHg for most adults if well tolerated 2
  • Reassess BP and medication tolerance within 2-4 weeks of initiation 2
  • Titrate medication or add additional agents if BP goals are not achieved 2