Ambulatory Blood Pressure Monitoring (ABPM) is a battery-operated portable device that records your blood pressure every 30 minutes during your habitual activities. A pressure cuff is installed on your forearm and connected to a monitor that can be worn at the belt or attached to a strap. The monitor is equipped with a memory card and an event button can be used to indicate any particular activity or situation. An activity log is filled up in details to allow the physician to evaluate any relation between the blood pressure recording and such particular activities or situations. Ambulatory monitoring of the blood pressure is indicated when your pressure readings at the clinic (white coat syndrome, etc.) or at home do not allow your physician to properly diagnose or treat your hypertension. The device is typically worn for 24 hours.