Nearly every GI doc requires people to stop PPIs for a week prior to the PH monitoring. I definitely understand your question, and very occasionally a GI doc asks a patient to stay on PPIs during the test, but the vast majority do not. Didn't you get directions with your appointment? Generally there are specific expectations for PH monitoring preparation.
Nissen Fundoplication 2/09
"Whatever you fight, you strengthen, and what you resist, persists.”
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