What is the main arterial pressure of a 120 over 80

Answer 1

The main arterial pressure, often referred to as mean arterial pressure (MAP), can be estimated using the formula:

\[ MAP = DBP + \frac{1}{3}(SBP - DBP) \]

where:

• SBP is the systolic blood pressure (the first number, in this case 120 mmHg),
• DBP is the diastolic blood pressure (the second number, in this case 80 mmHg).

Substituting the values:

\[ MAP = 80 + \frac{1}{3}(120 - 80) \] \[ MAP = 80 + \frac{1}{3}(40) \] \[ MAP = 80 + \frac{40}{3} \] \[ MAP = 80 + 13.33 \approx 93.33 , \text{mmHg} \]

So, the mean arterial pressure for a blood pressure reading of 120/80 mmHg is approximately 93.3 mmHg.