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Question: 1 / 400

With a blood pressure reading of 160/100, the mean arterial pressure is ___ mmHg.

60

80

To calculate the mean arterial pressure (MAP) from a blood pressure reading, you can use the formula:

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

In this formula, DBP represents diastolic blood pressure, and SBP represents systolic blood pressure. For the given blood pressure reading of 160/100 mmHg:

- SBP (systolic blood pressure) = 160 mmHg

- DBP (diastolic blood pressure) = 100 mmHg

Substituting these values into the formula gives:

\[ MAP \approx 100 + \frac{(160 - 100)}{3} \]

\[ MAP \approx 100 + \frac{60}{3} \]

\[ MAP \approx 100 + 20 \]

\[ MAP \approx 120 \, mmHg \]

Therefore, the mean arterial pressure is 120 mmHg, supporting the answer that matches this calculation. The MAP is a crucial parameter in critical care as it reflects the average blood pressure in a person's arteries during one cardiac cycle, providing an important insight into perfusion and organ function.

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