Gold Standard investigation for GERD-: (A) 24 hour pH recording, (B) Endoscopy, (C) Ultrasound, (D) Magnetic resonance imaging
Answer is A. Ans. is 'a' i.e., 24 hour pH recording Diagnostic measurement in GERD* 24- hour pH recording is the 'gold standard' for diagnosis of GERD* TILOSRs are the most important manometric findings in GERD* The length and pressure of the LOS are also important