Blood pressure
What does a blood pressure of 140/90 mean?
October 5, 2026 · 5 min read
Under the American College of Cardiology / American Heart Association (ACC/AHA) categories, a top number (systolic) of 140 or higher, or a bottom number (diastolic) of 90 or higher, is in the stage 2 high blood pressure range. One reading alone does not diagnose anything — what matters is your average over several days.
Recheck it the right way
- Sit quietly for 5 minutes, back supported, feet flat, arm resting at heart level.
- Use a validated upper-arm cuff that fits your arm.
- Take two readings one minute apart, morning and evening, for about a week.
- Avoid caffeine, exercise and smoking for 30 minutes before measuring.
What your provider may look at
Clinicians usually look at the average of your home readings, your other health conditions, and your overall heart risk. Bring your log or the one-page summary from Today's Vitals to your visit.
Get emergency care right away if your reading is 180/120 or higher with chest pain, shortness of breath, back pain, numbness, weakness, vision changes or trouble speaking.
Educational only, not medical advice — consult with your provider.
Sources
- American Heart Association — Understanding blood pressure readings
- American Heart Association — Monitoring your blood pressure at home
Educational information only. It does not diagnose, prescribe, or replace medical advice. In an emergency, call 911.
