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Most experts define low blood pressure as a reading lower than 90 for systolic pressure and lower than 60 for diastolic pressure, according to Mayo Clinic. Only one of the numbers needs to be in the low range for the ove... More »

www.reference.com Health Medical Ranges & Levels

A blood pressure range lower than 120/80 is considered normal, according to the American Heart Association. The systolic number,120, measures the pressure on the arteries as the heart contracts. The 80, or diastolic numb... More »

www.reference.com Health Medical Ranges & Levels

Blood pressure measuring 70 over 50 is considered normal unless symptoms are present to indicate that the blood pressure is too low, states Mayo Clinic. Blood pressure below 90 over 60 can be considered low blood pressur... More »

www.reference.com Health Medical Ranges & Levels
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The optimal blood pressure range for healthy adults is between 90 millimeters of mercury, or mmHg, to 120 millimeters of mercury for systolic pressure and 60 millimeters of mercury to 80 millimeters of mercury for diasto... More »

www.reference.com Health Medical Ranges & Levels

A low blood pressure reading may be the result of hypotension, which is chronically low blood pressure, according to the American Heart Association. However, prolonged bed rest, pregnancy, a decrease in blood volume, cer... More »

www.reference.com Health Medical Ranges & Levels

Dehydration sometimes causes low blood pressure, according to Mayo Clinic. Dehydration can lead to a life-threatening condition known as hypovolemic shock. The low blood volume reduces the oxygen supply to tissues and, i... More »

www.reference.com Health Medical Ranges & Levels

Signs of low blood pressure include fainting, blurred vision, nausea, thirst, dizziness and a lack of concentration, according to Mayo Clinic. Often low blood pressure has no symptoms. There is usually an underlying caus... More »

www.reference.com Health Medical Ranges & Levels