The top number is the systolic blood pressure, which measures the pressure caused by the heart contracting and squeezing out blood. The bottom number is diastolic blood pressure, which measures ...

All values must be entered in order to calculate percentiles for Blood Pressure and Height. A percentile shows the relative position of the child's measurement (such as Blood Pressure or Height) among ...

If you have high blood pressure, your heart has to work harder than normal to pump blood throughout your body. Over time, hypertension can lead to serious medical problems including stroke ...