Your blood pressure is being measured as you move around, living your normal daily life. It is normally carried over 24 hours. It uses a small digital blood pressure machine that is attached to a belt around your body and which is connected to a cuff around your upper arm. It small enough that you can go about your normal daily life and even sleep with it on.
Non-invasive ambulatory blood pressure monitoring (ABPM) is being increasingly used to assess patients with hypertension. This trend is supported by evidence that 24-hour blood pressure profiles may be superior to isolated clinic pressures. This is because a 24 hour reading is more reliable than a simple one off reading. Patients often experience “white coat” hypertension (elevated BP in the presence of a doctor) and are wrongly diagnosed with high BP. Multiple readings are useful for evaluating the effectiveness of high BP treatments in patients who have commenced medication or other therapy. It is also a useful tool for monitoring BP in patients who feel weak or who are hypotensive.