The 2017 ACC/AHA guideline for high BP in adults provides four BP categories based on the average of two or more in-office readings on 2 or more occasions:
- Normal: Lower than 120 mm Hg systolic BP (SBP) and 80 mm Hg diastolic BP (DBP).
- Elevated: 120–129 mm Hg SBP and lower than 80 mm Hg DBP.
- Stage 1 hypertension: 130–139 mm Hg SBP or 80–89 mm Hg DBP.
- Stage 2 hypertension: Higher than or equal to 140 mm Hg SBP or 90 mm Hg DBP.