1. What is Mean Arterial Pressure (MAP)?

Definition: MAP is the average arterial pressure throughout one cardiac cycle, systole and diastole.

Purpose: It's a better indicator of perfusion to vital organs than systolic blood pressure alone.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( MAP \) — Mean Arterial Pressure (mmHg)
• \( SBP \) — Systolic Blood Pressure (mmHg)
• \( DBP \) — Diastolic Blood Pressure (mmHg)

Explanation: The formula accounts for the fact that diastole lasts twice as long as systole in the cardiac cycle.

3. Importance of MAP Calculation

Details: MAP is crucial in clinical settings to ensure adequate organ perfusion. A MAP of at least 60 mmHg is necessary to perfuse coronary arteries, brain, and kidneys.

4. Using the Calculator

Tips: Enter both systolic and diastolic blood pressure values in mmHg. SBP should be higher than DBP.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal MAP range?
A: Normal MAP ranges from 70-100 mmHg. Below 60 mmHg may indicate inadequate blood flow to organs.

Q2: Why is MAP more important than BP in some cases?
A: MAP better reflects perfusion pressure throughout the entire cardiac cycle.

Q3: When is MAP monitoring critical?
A: In ICU settings, during surgery, and for patients with circulatory shock or severe hypertension.

Q4: How does heart rate affect MAP?
A: While not in the basic formula, increased heart rate can increase MAP by reducing time for pressure to drop during diastole.

Q5: What if my SBP is lower than DBP?
A: The calculator will show an error as this is physiologically impossible in normal circumstances.