Ambulatory Blood Pressure Monitoring (ABPM) is a method used to measure blood pressure over a 24-hour period while a patient goes about their normal activities. This technique involves wearing a portable device that takes readings at regular intervals, typically every 15-30 minutes, throughout the day and night. ABPM helps diagnose conditions like white coat hypertension, where blood pressure rises in a clinical setting but is normal at home. It provides a more accurate assessment of blood pressure patterns, enabling better management of hypertension. ABPM is valuable for adjusting treatment plans and monitoring long-term cardiovascular health.