RT Book, Section A1 Girgis, Reda E. A2 Imboden, John B. A2 Hellmann, David B. A2 Stone, John H. SR Print(0) ID 57275816 T1 Chapter 63. Pulmonary Hypertension T2 CURRENT Diagnosis & Treatment: Rheumatology, 3e YR 2013 FD 2013 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-163805-0 LK accessmedicine.mhmedical.com/content.aspx?aid=57275816 RD 2024/04/19 AB Mean pulmonary artery pressure ≥25 mm Hg defines pulmonary hypertension.Values between 21 mm Hg and 24 mm Hg are considered borderline elevated.Pulmonary hypertension is classified as precapillary when the left heart filling pressure or pulmonary artery wedge pressure is ≤15 mm Hg.