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Low blood pressure is a condition in which the force of the blood pushing against the artery walls is too low. It's also called hypotension. Blood pressure is measured in millimeters of mercury (mm Hg). In general, low blood pressure is a reading lower than 90/60 mm Hg.
Here's a look at the four blood pressure categories and what they mean for you. If your top and bottom numbers fall into two different categories, your correct blood pressure category is the higher category. For example, if your blood pressure reading is 125/85 mm Hg, you have stage 1 hypertension.
Blood pressure readings. If you track your blood pressure at home, keep a log of your blood pressure readings. Note multiple readings at different times of day. Also note when you have symptoms and whether they happened when your blood pressure was low. Important personal information. Include any family history of low blood pressure and major ...
Orthostatic hypotension — also called postural hypotension — is a form of low blood pressure that happens when standing after sitting or lying down. Orthostatic hypotension can cause dizziness or lightheadedness and possibly fainting. Orthostatic hypotension can be mild. Episodes might be brief.
DEAR MAYO CLINIC: What is considered “low” for the diastolic number in a blood pressure reading? What would a low reading mean? If the systolic number is within normal range, what can be done to alter the diastolic number? ANSWER: A blood pressure reading has two numbers, given in millimeters of mercury. The first, or upper, number measures ...
High blood pressure (hypertension) is diagnosed if the blood pressure reading is equal to or greater than 130/80 millimeters of mercury (mm Hg). A diagnosis of high blood pressure is usually based on the average of two or more readings taken on separate occasions.
Checking your pulse pressure may help your care team predict your risk of heart and blood vessel events, such as heart attacks and strokes. A pulse pressure greater than 60 is a risk factor for heart disease, especially for older adults.
A systolic blood pressure reading of 90 mm Hg or less or a diastolic reading of 60 mm Hg or less is generally considered low blood pressure (hypotension). Normal blood pressure varies from person to person, though.
In general, a blood pressure reading of 120/80 mm Hg or lower is ideal. Isolated systolic hypertension happens when the top blood pressure number is 130 mm Hg or higher and the bottom number is less than 80 mm Hg.
Blood pressure higher than 180/120 mm Hg is considered a hypertensive emergency or crisis. Seek emergency medical help for anyone with these blood pressure numbers. Untreated, high blood pressure increases the risk of heart attack, stroke and other serious health problems.