Welcome to the forum.
Pulmonary hypertension is defined as a mean PAP greater than 25 mm Hg at rest, or a mean PAP greater than 30 mm Hg during exercise. The severity of the PH can be further classified below:
Classification Pulmonary Artery Pressure (PAP) PAP
Borderline Mean PAP 21-25 mm Hg OR Systolic PAP 31-40 mm Hg
Mild Mean PAP 2do6-30 mm Hg OR Systolic PAP 41-50 mm Hg
Moderate Mean PAP 26-30 mm Hg OR Systolic PAP 41-50 mm Hg
Severe Mean PAP >40 mm Hg OR Systolic PAP >70 mm Hg
Hope this helps and you are within the normal or borderline range. Systole is the resistance and the pressure required for the rightside of the heart to pump blood to the lungs. Thanks for sharing and take care.