According to WebMD, a normal blood pressure is lower than 120/80. This means that the systolic number is 120 or lower, and the diastolic number is 80 or lower. The systolic number measures artery pressure when the heart ... More »

Low blood pressure, or hypotension, occurs when a person's blood pressure measures below 90 for systolic and 60 for diastolic, according to WebMD. Having just one number below these given figures is enough for a person t... More »

www.reference.com Health Medical Ranges & Levels

Both high blood pressure (hypertension) as well as high pressure in the eye (ocular hypertension) can cause damage to the optic nerve, which may lead to glaucoma. Hypertension can also worsen ocular hypertension and indi... More »

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A blood pressure reading of 200/180 does not fall within the range for a normal blood pressure and is considered to be stage 2 hypertension, as stated by Mayo Clinic. Normal blood pressure readings are 120/80 or below fo... More »

According to About.com, normal blood pressure is 120 millimeters of mercury during a heart contraction and 80 millimeters of mercury during relaxation. This results in blood pressure readings in the range of 120/70 to 14... More »

www.reference.com Health Medical Ranges & Levels

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

A normal blood pressure for a person is anything below 120 over 80, according to the American Heart Association. However, numbers too far below 120/80 can also be dangerous. More »

www.reference.com Health Medical Ranges & Levels