TY - CHAP M1 - Book, Section TI - Chapter 492. Pulmonary Hypertension A1 - Hoffman, Julien I. E. A2 - Rudolph, Colin D. A2 - Rudolph, Abraham M. A2 - Lister, George E. A2 - First, Lewis R. A2 - Gershon, Anne A. PY - 2011 T2 - Rudolph's Pediatrics, 22e AB - After about 1 week of age, pulmonary arterial blood pressure is normally under 25/12 mm Hg, and mean pressure is under 18 mm Hg.1,2 Any higher pressure is regarded as pulmonary arterial hypertension, although slight increases are usually not clinically important. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/18 UR - accesspediatrics.mhmedical.com/content.aspx?aid=7048901 ER -