Blood pressure (BP) is read by stating two numbers, measured in millimeters of mercury (mmHg), with the higher number coming first. These numbers represent the systolic and diastolic pressures respectively.
Understanding Blood Pressure Readings
Blood pressure readings provide crucial information about the force of blood against your artery walls. The reading consists of two numbers:
- Systolic Pressure: This is the top number, which indicates the pressure in your arteries when your heart beats (contracts).
- Diastolic Pressure: This is the bottom number, which indicates the pressure in your arteries when your heart rests between beats.
Reading the Numbers
As specified in our reference, blood pressure readings are always given in pairs, with the upper (systolic) value first, followed by the lower (diastolic) value. For example, a reading of 120/80 mmHg would be spoken or written as "120 over 80."
| BP Reading | Systolic (mmHg) | Diastolic (mmHg) |
|---|---|---|
| 120/80 | 120 | 80 |
| 130/85 | 130 | 85 |
| 110/70 | 110 | 70 |
Practical Insights
- Normal Range: While ranges can vary slightly, a healthy blood pressure reading is generally considered to be less than 120/80 mmHg.
- High Blood Pressure (Hypertension): Readings consistently at or above 130/80 mmHg are considered high and may require medical attention.
- Low Blood Pressure (Hypotension): Readings below 90/60 mmHg are considered low and may also need medical attention.
- Importance of Regular Checks: Regular blood pressure monitoring is essential for maintaining good health.
Therefore, blood pressure is always read with the systolic number first, followed by the diastolic number, both measured in mmHg.
