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Gastroenterology

Gastroenterology

Gastroenterology Services New York Gastroenterology Associates (NYGA) is a premier independent gastroenterology practice in New York City. Recognized for providing the highest quality gastroenterological care, all our gastroenterologists are board-certified and...

24-Hour pH/Impedance Test

What is a 24-Hour pH/Impedance Test? Patients with chronic heartburn or other suspicions for gastroesophageal reflux disease (GERD) may be asked to undergo a 24-hour pH/Impedance test. This exam quantitatively measures the amount and chemical nature of reflux episodes...