Pressure measurements, particularly blood pressure readings, are read as two numbers. These numbers represent the systolic and diastolic pressures. Let's break down how to understand these readings:
Understanding Blood Pressure Numbers
Your blood pressure reading will always consist of two numbers:
- Systolic Pressure: This is the top or first number. It represents the pressure in your arteries when your heart beats.
- Diastolic Pressure: This is the bottom or second number. It represents the pressure in your arteries when your heart rests between beats.
How to Interpret a Blood Pressure Reading
Blood pressure readings are typically expressed in millimeters of mercury (mmHg), for example, 120/80 mmHg. The interpretation of these numbers is crucial for understanding your cardiovascular health.
| Category | Systolic (mmHg) | Diastolic (mmHg) |
|---|---|---|
| Normal | Less than 120 | Less than 80 |
| Elevated | 120-129 | Less than 80 |
| High Blood Pressure (Hypertension) Stage 1 | 130-139 | 80-89 |
| High Blood Pressure (Hypertension) Stage 2 | 140 or higher | 90 or higher |
| Hypertensive Crisis | Higher than 180 | Higher than 120 |
Key points to remember:
- Systolic pressure is more important in people over 50 because it can be a better indicator of risk for cardiovascular disease.
- It's essential to understand that blood pressure readings are also categorized, going from normal to a crisis state as noted in the table above.
- A single high reading doesn't always mean you have hypertension. It's important to have consistent readings taken over time.
- Consult your healthcare provider for a complete assessment if you are concerned about your blood pressure.
Examples
- A reading of 120/80 mmHg is generally considered normal.
- A reading of 135/85 mmHg is classified as stage 1 hypertension.
- A reading of 145/95 mmHg is classified as stage 2 hypertension.
- A reading of 190/130 mmHg would indicate a hypertensive crisis.
Conclusion
Reading pressure measurements involves understanding the systolic (top number) and diastolic (bottom number) values and placing those values into the categories. Knowing how to read these measurements is important for understanding one's blood pressure and overall health.
