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Blood Pressure Chart

Thu, 2010-06-24 01:05 -- Thiruvelan

Blood pressure reading includes systolic and diastolic pressure values. Systolic blood pressure is the pressure peak when the heart beats while pumping blood. Diastolic blood pressure is the pressure drop when the heart is at rest between beats.

Often blood pressure levels are written with the systolic number above or before the diastolic, such as 120/80 mmHg. (The mmHg is millimeters of mercury the unit to measure pressure.)

Blood pressure level chart in mmHg

Category Systolic   Diastolic
Normal less than 120 and less than 80
Pre Hypertension 120 to 139 or 80 to 89
Hypertension (stage 1) 140 to 159 or 90 to 99
Hypertension (stage 2) greater or equal to 160 or greater or equal to 100

When systolic and diastolic blood pressures fall into different categories, should use the higher category to classify blood pressure levels. For example, 150/79 mmHg would be stage 1 hypertension.

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Low blood pressure causes can be due to hormonal changes, widening of blood vessels, medicine side effects, anemia, heart, & endocrine problems.