Blood pressure is the pressure of circulating blood within the arteries. It increases during heartbeat and reduces when the heart relaxes between each beat. It is measured as 'systolic' pressure and 'diastolic' pressure. Systolic pressure refers to the bp which occurs while the heart beats when it pumps the blood and 'diastolic' pressure refers to bp which occurs while the heart stays in rest between the beats.
| Systolic | Diastolic | Level of Severity |
|---|---|---|
| <90 | <60 | Low BP |
| >=90 | >=60 | Normal |
| >=130 | >=85 | High Normal |
| >=140 | >=90 | Mild Hypertension |
| >=160 | >=100 | Moderate Hypertension |
| >=180 | >=110 | Severe Hypertension |
| >=210 | >=120 | Very Severe Hypertension |
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