RT Book, Section A1 Vongpatanasin, Wanpen A2 Crawford, Michael H. SR Print(0) ID 57950243 T1 Chapter 2. Systemic Hypertension T2 CURRENT Diagnosis & Treatment Cardiology, 4e YR 2014 FD 2014 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-180127-0 LK accesscardiology.mhmedical.com/content.aspx?aid=57950243 RD 2022/08/12 AB Prehypertension: systolic pressure of 120–139 mm Hg or diastolic pressure of 80–89 mm Hg.Stage 1 hypertension: systolic pressure of 140–159 mm Hg or diastolic pressure of 90–99 mm Hg.Stage 2 hypertension: systolic pressure of at least 160 mm Hg or diastolic pressure of at least 100 mm Hg.