What is a blood pressure monitor

Upper arm or wrist?

Which measurement should I prefer? Should I take the blood pressure on my upper arm or wrist?

Tests show that wrist blood pressure monitors measure just as reliably as upper arm devices.

However, with age, the blood vessels can narrow due to deposits or harden due to arteriosclerosis. This particularly affects the wrist arteries, which are further from the heart, making it difficult to measure accurately. Older people and smokers should therefore take a measurement on the upper arm.

Wrist devices are unsuitable for people with diabetes because the arteries may be calcified or porous.

Why are there measurement differences between measurements on the upper arm and wrist?

The Wrist measurement must be done so that the wrist is at the level of the heart. If, for example, the arm is placed flat on the table in a sitting position, the Blood pressure overestimated by approx. 7-8 mmHg because there is a difference to the heart height (1.5 cm corresponds to 1 mmHg).

Flawed Measurement results When measuring the wrist, this also occurs when there is cardiac arrhythmia and changes in the arteries in the wrist (e.g. age-related). Wrist devices can therefore determine inaccurate results, particularly in the case of older people. The arteries on the upper arm are not as sensitive to such influences. Therefore, occasional comparative measurements on the upper arm are recommended.