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(a) Systolic blood pressure of more than 140 mm Hg is a more important risk factor for CVD than diastolic pressure in patients over 50 years old. (b) A systolic blood pressure of 120 to 139 mg Hg or a diastolic blood pressure of 80 to 89 mm Hg indicates prehypertension. (c) In emergencies: (1) Elevated blood pressure may be from anxiety or pain. ................
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