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若成年人的收缩压在90毫米汞柱以下、舒张压在60毫米汞柱以下时,称为低血压症。它可分为三种:1.原发性低血压;2.继发性低血压;3.体位性低血压。
If the adult systolic blood pressure below 90 mm Hg, diastolic blood pressure below 60 mm Hg, known as hypotension. It can be divided into three types: 1. primary hypotension; 2. secondary hypotension; 3. orthostatic hypotension.