Reasons to Perform ph Bravo Testing
• Frequent heartburn
• Reflux unrelieved by acid blockers
• Chest pain with negative cardiac evaluation
• Atypical reflux symptoms- cough
- hoarsenss
- sore throat
• Assessment of severity for consideration of anti-reflux surgery

pH Bravo Testing

 

 

 

 

Patient Information on pH Bravo Testing

 

General Overview

An esophageal pH test measures and records the pH in your esophagus to determine if you have gastroesophageal reflux disease (GERD). The test can also be done to determine the effectiveness of medications or surgical treatment for GERD.  A small capsule, about the size of a gel cap, is temporarily attached to the wall of the esophagus during an upper endoscopy. The capsule measures pH levels in the esophagus and transmits readings by radio telecommunications to a receiver (about the size of a pager) worn on your belt or waistband. The capsule will automatically detact after 48 hours and pass through the GI system and out with your stool.  The receiver has several buttons on it that you will press to record symptoms of GERD such as heartburn (the nurse will tell you what symptoms to record). You will be asked to maintain a diary to record certain events such as when you start and stop eating and drinking, when you lie down, and when you get back up.

Frequently Asked Questions

What happens during esophageal reflux?

A specialized muscle, called the lower esophageal sphincter, is located where the esophagus meets the stomach (see figure). This sphincter opens to allow food and liquid to pass into the stomach, then closes. When the sphincter does not close tightly, food particles, stomach acid and other digestive juices can splash back up into the esophagus. When this happens, the condition is called gastroesophageal reflux. When reflux occurs on a regular basis, it can cause permanent damage to the esophagus. The esophageal pH test measures how often stomach contents reflux into the lower esophagus and how much acid the reflux contains.

How do I prepare for the Bravo esophageal pH test?

Let your physician know if you have a pacemaker or implantable heart defibrillator, a history of bleeding problems, dilated blood vessels, and any other previously known problems with your esophagus.

  • Seven days before the monitoring period, do not take proton pump inhibitors: omeprazole (Prilosec®), lansoprazole (Prevacid®), rabeprazole (Aciphex®), pantoprazole (Protonix®), esomeprazole (Nexium®)
  • Two days (48 hours) before the monitoring period, do not take the H2 blockers: ranitidine (Zantac®), cimetidine (Tagamet®), famotidine (Pepcid®), nizatidine (Axid®); or the promotility drug, metoclopramide (Reglan®)
  • Six hours before the monitoring period, do not take antacids (such as Alka-Seltzer®, Gaviscon®, Maalox®, Milk of Magnesia®, Mylanta®, Phillips®, Riopan®, Tums® or any other brands)
  • Four to 6 hours before your appointment do not eat or drink

Please note: Occasionally, your doctor may want you to continue taking a certain medication during the monitoring period to determine if it is effective.

Once the test has begun, what do I need to know and do?

  • Activity: Follow your usual daily routine. Do not reduce or change your activities during the monitoring period. Doing so can make the monitoring results less useful. Note: do not get the receiver wet; it is not waterproof!
  • Eating: Eat your regular meals at the usual times. If you do not eat during the monitoring period, your stomach will not produce acid as usual, and the test results will not be accurate. Eat at least 2 meals a day. Eat foods that tend to increase your symptoms (without making yourself miserable)! Avoid snacking. Do not suck on hard candy or lozenges and do not chew gum during the monitoring period.
  • Lying down: Remain upright throughout the day. Do not lie down until you go to bed (unless napping or lying down during the day is part of your daily routine).
  • Medications: Continue to follow your doctor’s advice regarding medications to avoid during the monitoring period.
  • Recording symptoms: Press the appropriate button on the receiver when symptoms occur (as discussed with the nurse). Record the time you start and stop eating and drinking (anything other than plain water). Record the time you lie down (even if just resting) and when you get back up. The nurse will explain this.
  • Unusual symptoms or side effects: If you think you may be experiencing any unusual symptoms or side effects, call your doctor.