Cardiological diagnostic tests can include 24-hour blood pressure monitoring, ABPM (ambulatory blood pressure monitoring). As blood pressure is not constant at different times of the day, and is affected by physical activity, eating, stress, a single measurement in the doctor’s office cannot provide accurate information. This is where ambulatory blood pressure monitors help by measuring and storing the pressure on the walls of blood vessels. The device takes 10 minutes to fit and then you can go about your daily activities. During the test, it is recommended that you keep a diary of your activities, such as when you have been more active, when you have been under stress, and if you have had any complaints. The test is painless, but the cuff inflation may cause some discomfort and tightness, which may disturb your sleep at night. The ABPM will automatically take measurements at set intervals, during which the arm should be kept extended. The device must not be exposed to water. The procedure does not require any preparation on the part of the patient. The results are evaluated during a consultation with a cardiologist.