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 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 »

When a blood pressure reading registers above 160/100, it is classified as stage 2 hypertension and can be fatal if not properly treated, reports Mayo Clinic. Hypotension, or low blood pressure, is a reading of 90/60 or ... More »

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 »

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 »

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