Measuring blood pressure may seem simple, but small mistakes can lead to misleading results.
Here are the most important things to know if you want accurate readings at home.
Measure both arms first
Always start by measuring your blood pressure in both the left and right arm.
This helps you identify which arm gives the higher reading, which you should use going forward.
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The right arm may read slightly higher
For many people, the right arm shows a slightly higher blood pressure than the left. This is normal if the difference is under 5 mmHg.
Take differences over 10 mmHg seriously
If you repeatedly measure a difference of 10 mmHg or more between arms, it could be a sign of issues such as atherosclerosis or narrowing of the arteries.
Always use the arm with the highest reading
Once you’ve determined which arm consistently shows higher blood pressure, use that one for future measurements to avoid underestimating your blood pressure.
Relax before measuring
Sit comfortably, support your arm, and make sure your elbow is at heart level. Stress and tension can cause a falsely high result.
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Avoid coffee and cigarettes before measuring
Caffeine and nicotine can temporarily raise blood pressure, so wait at least 30 minutes after consuming them before taking a reading.
Don’t talk during the measurement
Even small conversations can alter the pressure in your body and give an inaccurate reading. Sit quietly while the measurement is in progress.
Measure on bare skin
Place the cuff directly on your skin. Measuring over clothing can interfere with accuracy.
Take multiple readings
If there’s more than a 5 mmHg difference between the first two measurements, it’s a good idea to take a third one to ensure accuracy.
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Measure both morning and evening
Blood pressure is typically highest in the morning and lower in the evening. For an accurate overall picture, measure at both times of day.
Maintain correct body position
Sit with your feet flat on the floor and your back straight. Crossing your legs or leaning forward can result in a falsely high reading.
This article is based on information from Kiskegyed.hu.
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This article is made and published by Ida-Marie Palm Varbæk, who may have used AI in the preparation.