The Global Trigger Tool (GTT) was developed by the Institute of Healthcare Improvement (IHI), to identify and measure the rate of adverse events over time in a healthcare facility. It is a sampling methodology that utilizes "triggers" in the detection of random adverse events and harms and it also measures the adverse events overtime. The Quality and Patient Safety Group of St. Luke's Medical Center--Global City initiated the implementation of the Global Trigger Tool as a proactive solution using retrospective information gathered to address the growing challenge that adverse events and harms impose in the institution with the ultimate goat of improving patient safety. St. Luke's Medical Center Global City is the first and only hospital in the Philippines to implementand utilize the Global Trigger Tool.