Blood pressure categories are based on the American Heart Association guidelines:

• Normal: Systolic < 120 mmHg AND Diastolic < 80 mmHg
• Elevated: Systolic 120-129 mmHg AND Diastolic < 80 mmHg
• High Blood Pressure Stage 1: Systolic 130-139 mmHg OR Diastolic 80-89 mmHg
• High Blood Pressure Stage 2: Systolic ≥ 140 mmHg OR Diastolic ≥ 90 mmHg
• Hypertensive Crisis: Systolic > 180 mmHg OR Diastolic > 120 mmHg

Reference: American Heart Association