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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.
This blood pressure chart can help you figure out if your blood pressure is at a healthy level. It also can help you understand if you need to take some steps to improve your numbers. Blood pressure is measured in millimeters of mercury (mm Hg).
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 ...
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 ...
Normal blood pressure. Blood pressure is lower than 120/80 mm Hg. Elevated blood pressure. The top number ranges from 120 to 129 mm Hg and the bottom number is below, not above, 80 mm Hg. Stage 1 hypertension. The top number ranges from 130 to 139 mm Hg or the bottom number is between 80 and 89 mm Hg. Stage 2 hypertension.
If your blood pressure is high or low, you usually need at least three more blood pressure tests, spaced a week or so apart, to determine if you need treatment. Blood pressure can vary from moment to moment and day to day.
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.
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.
A problem with the way blood flows in the heart. Unusual changes in the protein called hemoglobin, which carries oxygen in red blood cells. Causes of hypoxemia that are related to problems with blood or blood flow include: Anemia; Congenital heart defects in children — heart conditions that children were born with.
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.