US Blood Pressure Guidelines: The ACC/AHA Categories Explained

US practice follows the guideline written jointly by the American College of Cardiology and the American Heart Association (ACC/AHA). The current version is the 2025 AHA/ACC guideline, published in August 2025, which replaced the landmark 2017 guideline — but kept its blood pressure categories, and the ≥130/80 mmHg definition of hypertension, exactly as they were. If you learned the chart after 2017, you already know it.

Two details of the table matter more than they look. The and versus or column means a single high number is enough from Stage 1 upward — 134/72 is Stage 1 even though the diastolic is well inside the normal band. And every category assumes readings that are consistently in that range, measured correctly at rest, not one reading after a stressful commute.

The scale of the problem is why the US guideline reaches so low: per the CDC, nearly half of US adults (48.1%) have high blood pressure, and only about 1 in 4 of those have it under control.

Since the categories didn't move, what did? Three changes stand out for anyone tracking their own numbers:

• A new risk calculator. Treatment decisions are now guided by the PREVENT risk equation instead of the older Pooled Cohort Equations. PREVENT excludes race as an input and adds social-determinants context — so the risk score that shapes your treatment plan is computed differently than it would have been in 2024, even with identical readings.
• Stage 1 management tightened. Under the 2017 guideline, Stage 1 patients at lower cardiovascular risk were managed with lifestyle change alone. The 2025 guideline adds a Class 1 recommendation to start blood-pressure-lowering medication if 3–6 months of lifestyle change fails to bring readings below 130/80 — even at lower risk (PREVENT risk under 7.5%). A Stage 1 reading is no longer something to watch indefinitely.
• Brain health is now an explicit goal. The guideline adds a Level 1A recommendation to target a systolic pressure below 130 mmHg to reduce the risk of cognitive impairment and dementia — the strongest statement yet that blood pressure control protects the brain as well as the heart.

The overarching treatment goal is below 130/80 mmHg for all adults, and the guideline also strengthens its emphasis on home monitoring — which is where an app earns its keep. Blood Pressure Journal ships with these exact categories as its defaults: below 120/80 Normal, 120–129 Elevated, 130/80+ Stage 1, 140/90+ Stage 2, above 180/120 flagged as a crisis. Since the 2025 guideline kept the 2017 bands, the app's color-coding maps 1:1 onto current US guidance with nothing to configure — and if your doctor works to different thresholds, the ranges are customizable.

US guidance leans heavily on self-measured blood pressure, and the AHA and American Medical Association teach a specific protocol through their joint Target:BP initiative:

• Measure every morning and every evening for seven consecutive days. (A minimum of 2 consecutive days is acceptable when a full week isn't possible.)
• Take two readings, one minute apart, at each sitting.
• Average the week's readings — the average is the number your doctor acts on, not any single measurement.

Technique matters as much as schedule: don't exercise, smoke, or consume caffeine within 30 minutes of measuring, and sit with your back supported and your arm resting on a flat surface at heart level. Our step-by-step measurement guide covers the full setup, and unlike some countries' protocols, the US framework applies the same 130/80 threshold to home averages — there's no separate home cut-off to remember.

For recording, Target:BP publishes a printable 7-day blood pressure log (PDF) that matches the protocol exactly — or see our blood pressure log template for what to record and how to share it, on paper or in an app.

Cuff accuracy is not something you can judge from a product page, so the American Medical Association maintains the US Blood Pressure Validated Device Listing (VDL) at validatebp.org — a free listing of devices that have been independently validated for clinical accuracy. Manufacturers submit devices voluntarily, an independent review committee of physician experts assesses them, and the AMA takes no manufacturer funding for the process. The listing covers home and office upper-arm monitors, wrist devices, kiosks, and 24-hour ambulatory monitors.

Before buying a cuff, check that the exact model appears there. For the trade-offs between upper-arm, wrist, and other designs, see our guide to the types of blood pressure monitors.

Per the CDC, there are three standard routes: a health care team member at a doctor's office, a digital blood pressure machine at a pharmacy, or a home monitor you use yourself. Many US pharmacies offer blood pressure checks, which makes an occasional between-visit reading easy even without your own cuff.

For ongoing tracking, though, US guidance favors the home route — the CDC's own home-monitoring tips are to keep a log, measure at the same time each day, and take at least two readings 1–2 minutes apart, which is the Target:BP protocol in miniature. A pharmacy kiosk is a snapshot; a week of home readings is the picture your doctor can actually act on.

A reading suddenly higher than 180/120 mmHg is a hypertensive crisis. What you do next depends on symptoms:

• With symptoms — call 911. Chest pain, shortness of breath, numbness or weakness, changes in vision, or difficulty speaking alongside a reading above 180/120 is a hypertensive emergency. Don't wait, don't re-measure, don't drive yourself.
• Without symptoms: sit quietly for five minutes and measure again. If it's still that high, contact your doctor promptly the same day.

Remember that crisis-range readings can also be measurement artifacts — a too-small cuff, a reading taken mid-conversation, or right after climbing stairs. That's why the calm re-measure matters when you feel fine. High blood pressure below crisis levels usually has no symptoms at all, which is exactly why the guideline leans on regular measurement rather than on how you feel — see our guide to high blood pressure symptoms for the full picture.