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When is blood pressure high and when it is low and what is the reason behind it |
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Answer» A blood pressure reading lower than 90 millimeters of mercury (mm Hg) for the top number (systolic) or 60 mm Hg for the bottom number (diastolic) is generally considered low blood pressure. The causes of low blood pressure can range from dehydration to serious medical or surgical disorders. During ventricular contraction (systole) blood pressure is high as the blood is pumped into the arteries.During venticular relaxation (diastole) blood pressure is low. Answer please |
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