How to read your blood pressure monitor
Most home blood pressure monitors show three numbers: systolic blood pressure, diastolic pressure, and pulse. Here is what each usually is — not how Blood Snap classifies them.
Systolic (top, larger number)
Pressure when the heart pushes blood out — the 118 in 118/76 mmHg.
Diastolic (bottom number)
Pressure between beats — the 76.
Pulse (heart rate)
Beats per minute. A separate measurement from blood pressure. Resting pulse discussion ranges for many adults often sit around 60–100 bpm; athletes may be lower. Ask your clinician what applies to you.
Published categories (not in the app)
| Category (AHA 2017 language) | Systolic | Diastolic |
|---|---|---|
| Normal | <120 | <80 |
| Elevated | 120–129 | <80 |
| Stage 1 hypertension | 130–139 | 80–89 |
| Stage 2 hypertension | ≥140 | ≥90 |
| Hypertensive crisis (emergency discussion) | >180 | >120 |
Source: American Heart Association guideline materials, 2017. ESC/ESH uses related thresholds. This table is for reading — Blood Snap does not apply it to your log.
A reading above 180/120 mmHg with chest pain, severe headache, or shortness of breath is an emergency. Call local emergency services.
Log this in Blood Snap. Save SYS / DIA / pulse from any home BP cuff. The diary does not show stage labels.
Educational information with public guideline citations. Not medical advice and not a diagnosis. Blood Snap is a personal wellness diary — not a medical device, blood pressure machine, glucometer, or CGM. Always follow your clinician's advice.