High Blood Pressure (Hypertension): UK Online Doctor Guide
Educational information — not medical advice.
This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.
Key points
- Hypertension affects roughly 1 in 4 UK adults — many undiagnosed.
- Target BP <140/90 in clinic (<135/85 home), or <130/80 if diabetic/kidney disease.
- Lifestyle changes can lower BP by 5–20 mmHg.
- First-line medications: ACE inhibitors, ARBs, calcium channel blockers, thiazide diuretics.
- Most patients need 2–3 medications to reach target.
- An online GP can review readings, prescribe and arrange monitoring blood tests.
What counts as high?
- Normal: <120/80 mmHg.
- Elevated: 120–139/80–89.
- Stage 1 hypertension: 140/90+ in clinic, confirmed by home/ambulatory ≥135/85.
- Stage 2: 160/100+.
- Severe: >180/120 — urgent assessment.
Why it matters
Untreated hypertension increases risk of stroke, heart attack, heart failure, kidney disease and dementia. It usually has no symptoms — which is why measurement matters.
Lifestyle measures
- Reduce salt to <6g/day.
- Lose excess weight.
- Aerobic exercise 150 min/week.
- Limit alcohol to ≤14 units.
- DASH or Mediterranean diet.
- Stop smoking.
- Manage stress and sleep.
Medications (NICE pathway)
- Under 55 (and not Black African/Caribbean): ACE inhibitor (ramipril) or ARB (losartan).
- Over 55 or Black African/Caribbean: calcium channel blocker (amlodipine).
- Step 2: add the other class.
- Step 3: add thiazide-like diuretic (indapamide).
- Resistant: add spironolactone or beta-blocker.
Home monitoring
NICE recommends home BP monitoring (HBPM): twice daily for 4–7 days, average the readings (excluding day 1). Use a validated upper-arm cuff.
Online GP support
An online doctor can review your readings, adjust medication, arrange monitoring blood tests (U&Es, eGFR) and discuss cardiovascular risk.
Red flags — when to seek urgent help
Call 999 or go to A&E if you experience any of the following:
- BP >180/120 with symptoms (chest pain, breathlessness, headache, vision changes, neuro symptoms) — A&E
- Pregnancy with high BP
Frequently asked questions
Common questions UK patients ask about hypertension.
How an online doctor can help
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This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.
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