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Why Do I Obtain Different Values When I Take Two Measurements In A Row?

The human blood pressure is not a constant bodily parameter; this is due to normal physiological reasons. Your body's blood pressure can vary by 30 mmHg within a short period of time. Therefore, it is not unusual to obtain different values for sequential measurements. This can be due to mental and/or physical changes that have taken place between the individual measurements, such as an increase or reduction in stress, movement, muscle tension, or the amount of speaking or noise. It can also be due to the cuff being attached too loosely or too tightly, the cuff not being at the heart’s height, or the breaks between the measurements being too short.

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