Your blood pressure is lower than usual and you are dizzy or light-headed.Your blood pressure is usually normal and well controlled, but it goes above the normal range on more than one occasion.Your blood pressure is 140/90 or higher on two or more occasions.You think high blood pressure is causing symptoms such as: Blood pressure readings can give an indication of how hard your heart is working and are an important part of a general health assessment. Normal blood pressure for most adults is defined as a systolic pressure of less than 120 and a diastolic pressure of less than 80.Your blood pressure is much higher than normal (such as 180/110 or higher).For example, call if:Ĭall your doctor now or seek immediate medical care if: If it's still high or low, use the following guidance.Ĭall 911 anytime you think you may need emergency care. If you take your blood pressure and it is out of the normal range, wait a few minutes and take it again. One high or low blood pressure reading by itself may not mean you need to call for help. Fortunately, high blood pressure is treatable and preventable. Uncontrolled high blood pressure raises the risk for heart disease and stroke, which are leading causes of death in the United States. When should you get help for an abnormal blood pressure reading? High blood pressure affects nearly half of the adult population in the United States,1 yet many people who have the condition don’t know they have it. Another cause is dehydration, which is when your body loses too much fluid. What do blood pressure readings mean (blood pressure readings chart) normal blood pressure as less than 120/80, elevated blood pressure ranges between 120/80. Some medicines can cause a spike in blood pressure, including certain asthma medicines and cold remedies.Ī low blood pressure reading can be caused by many things, including some medicines, a severe allergic reaction, or an infection. Things like exercise, stress, and sleeping can affect your blood pressure. It's normal for blood pressure to go up and down throughout the day. What can cause a short-term change in blood pressure? A blood pressure reading of less than 90/60 is normal as long as you feel okay. In general, the lower your blood pressure, the better. If you have diabetes, it should be less than 130/80 ("130 over 80"). If you are 80 years and older, it should be less than 150/90 (“150 over 90”). Your blood pressure should be less than 140/90 ("140 over 90"). Someone with a systolic pressure of 117 and a diastolic pressure of 78 has a blood pressure of 117/78, or "117 over 78."īlood pressure that is too high increases your risk for heart attack and stroke. Your blood pressure consists of two numbers: systolic and diastolic. This information can help you understand what your blood pressure numbers mean and when you need to call for help. If you check your blood pressure, you may wonder when an abnormal reading means you should call your doctor.
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