Severe hypeension is defined if systolic BP is greater than:
Classification of blood pressure measurements: Category Systolic BP Diastolic BP Normal <130 <85 High normal 130-139 85-90 Stage 1 hypeension(mild) 140-159 90-99 Stage 2 hypeension(moderate) 160-179 100-109 Stage 3 hypeension(severe) >180 >110 Ref: Park 21st edition, page 344
140
160
180
200