Best test to diagnose gastroesophageal reflux disease and quantify acid output is:: (A) Esohagogram, (B) Endoscopy, (C) Manometry, (D) 24 hr pH monitoring
Answer is D. 24 hr pH monitoring "The gold standard, for diagnosing and quantifying acid reflux is the 24-hr pH test." -Sabiston Also Know Using 24-hour pH test an overall score is obtained. It is known as DeMeester score.