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A 24-hour esophageal pH study measures how much stomach acid backs up into the food pipe in 24 hours. The most common uses for this gold standard test are:
- To diagnose gastroesophageal reflux disease (GERD, a feeling of heartburn, pain and food coming back up)
- For patients with other problems (such as atypical chest pain, recurring pneumonia or throat symptoms)
- Pre- and post-treatment evaluation to determine if medication dosage is correct
- For pre- and postsurgical heartburn
- For non-cardiac chest pain
To prepare for the study:
- Do not eat or drink anything after midnight. (If you are diabetic, please talk to your primary care doctor.)
- Do no use gum.
- Discontinue any acid suppressing medication 5 days before your test unless as instructed by your physician.
- Ask your physician about taking other scheduled medications.
- Please make arrangements to bring your PH monitor back 24 hours after the catheter is placed.