The Bravo Wireless pH Study is a medical procedure that monitors and records the pH levels in a patient’s esophagus to determine if they have gastroesophageal reflux disease (GERD). The study involves attaching a small, wireless capsule to the lining of the esophagus during an endoscopy. This capsule measures pH levels over a period of 48 to 96 hours and transmits this information to a small receiver worn by the patient. The data collected provides a detailed picture of the patient’s acid reflux activity, helping doctors to diagnose GERD or assess the effectiveness of ongoing treatment. This procedure is minimally invasive and the capsule naturally falls off and passes through the digestive system after a few days.