RT Book, Section A1 Yamout, Hala A1 Bakris, George L. A2 Lerma, Edgar V. A2 Rosner, Mitchell H. A2 Perazella, Mark A. SR Print(0) ID 1149115240 T1 Primary (Essential) Hypertension T2 CURRENT Diagnosis & Treatment: Nephrology & Hypertension, 2e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9781259861055 LK accessmedicine.mhmedical.com/content.aspx?aid=1149115240 RD 2024/04/24 AB ESSENTIALS OF DIAGNOSISPrimary hypertension in adults aged 18 years and older is defined as blood pressure of 140/90 mm Hg or more, based on an average of two or more properly measured seated blood pressure (BP) readings at each of two or more clinic visits.Normal BP is a systolic BP (SBP) <120 mm Hg and diastolic BP (DBP) <80 mm Hg.Prehypertension is defined as an SBP of 120–139 mm Hg or DBP of 80–89 mm Hg.Stage 1 hypertension is defined by an elevation in either SBP 140–159 mm Hg or diastolic BP of 90–99 mm Hg.Stage 2 hypertension is defined by an elevation in either SBP of ≥160 mm Hg or DBP of ≥100 mm Hg.The BP should be measured properly (see text) and on at least two separate occasions before confirming the diagnosis. It should also interpreted in the context of the overall cardiovascular risk of the patient, which is most easily estimated by evaluating other concomitant disorders and target-organ damage (TOD) and using the lifetime risk equation (http://clincalc.com/cardiology/ascvd/pooledcohort.aspx or http://professional.heart.org/professional/GuidelinesStatements/Prevention_Guidelines/UCM_457698_Prevention-Guidelines.jsp)