What is the mean pulmonary arterial pressure threshold that indicates pulmonary hypertension?

Pulmonary hypertension is defined by mean pulmonary arterial pressure (mPAP) above a certain threshold, which is critical for diagnosing the condition. The accepted normal range for mPAP is generally considered to be around 8-20 mmHg. When mPAP exceeds 25 mmHg at rest, this is the threshold that establishes the diagnosis of pulmonary hypertension.

Thus, the choice that indicates 25 mmHg is recognized in clinical settings as the diagnostic cutoff for pulmonary hypertension. This threshold is widely utilized in both research and practical clinical applications, supporting the identification and treatment of individuals with this serious condition. Since 20 mmHg is still within the normal range, it does not suffice to indicate pulmonary hypertension, making the selection of 25 mmHg as the diagnostic criterion the most accurate.