Which statement about mean pulmonary artery pressure is accurate?

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Multiple Choice

Which statement about mean pulmonary artery pressure is accurate?

Explanation:
Mean pulmonary artery pressure is the average pressure in the pulmonary artery over the cardiac cycle, not the diastolic or systolic value. In healthy adults at rest, mean PAP is about 12–16 mmHg and is commonly cited as ranging roughly from 10–20 mmHg. That makes the statement describing a 10–20 mmHg range accurate. The other ideas aren’t correct because the mean is not equal to either the diastolic or the systolic pressure, and a value near or below 5 mmHg would be unrealistically low for the pulmonary circulation. A handy way to estimate it from systolic and diastolic pressures is: mean PAP ≈ diastolic PAP + 1/3 of (systolic − diastolic).

Mean pulmonary artery pressure is the average pressure in the pulmonary artery over the cardiac cycle, not the diastolic or systolic value. In healthy adults at rest, mean PAP is about 12–16 mmHg and is commonly cited as ranging roughly from 10–20 mmHg. That makes the statement describing a 10–20 mmHg range accurate. The other ideas aren’t correct because the mean is not equal to either the diastolic or the systolic pressure, and a value near or below 5 mmHg would be unrealistically low for the pulmonary circulation. A handy way to estimate it from systolic and diastolic pressures is: mean PAP ≈ diastolic PAP + 1/3 of (systolic − diastolic).

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