There are several methods of pH monitoring, each suited for different clinical scenarios:
Ambulatory 24-hour pH Monitoring: This involves placing a thin tube through the nose into the esophagus to measure acid levels over a 24-hour period. It provides a comprehensive overview of acid exposure and is commonly used to diagnose GERD. Bravo pH Capsule: This method involves attaching a small wireless capsule to the esophagus lining. It transmits pH data to a receiver worn by the patient. It is less invasive and more comfortable for long-term monitoring. Blood pH Monitoring: In critical care settings, blood pH is monitored using arterial blood gas (ABG) analysis to assess respiratory and metabolic function.