An optimal blood pressure reading is a reading that is 120/80 or lower, according to the American Heart Association. Any reading with a systolic number above 120 and a diastolic number above 80 may be considered hyperten... More »

www.reference.com Health Medical Ranges & Levels

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 »

A blood pressure reading with a systolic measurement under 120 and a diastolic measurement below 80 is considered normal, and readings outside this range are considered abnormal. Normal blood pressure readings may be low... More »

A normal blood pressure reading is 120/80, according to the American Heart Association. The top number represents systolic blood pressure, while the bottom represents diastolic blood pressure, both of which are expressed... More »

www.reference.com Health Medical Ranges & Levels

Blood pressure is considered to be high when the systolic reading is between 140 and 159 mm Hg or the diastolic reading is between 90 and 99 mm Hg or higher, according to the American Heart Association. This is known as ... More »

www.reference.com Health Medical Ranges & Levels

The result of blood pressure dropping to 54/20 millimeters of mercury depends on the previous blood pressure level and why the reading dropped, reports the American Heart Association. Nothing may happen, or a person's he... More »

www.reference.com Health Medical Ranges & Levels

Normal blood pressure is characterised by a systolic reading of less than 120 and a diastolic reading of less than 80, according to the American Heart Association. This is expressed as a ratio, with the systolic measure ... More »

www.reference.com Health Medical Ranges & Levels