It's often hard to tell why you are nauseous or vomiting. A health care provider will likely be able to find out what is happening to you. He or she will ask about the severity and timing of your symptoms and perform a physical exam. Blood and/or urine tests and/or an abdominal X-ray may be taken to determine the cause of your nausea and vomiting.
Heartburn, primarily in patients who have failed medical treatment and are candidates for surgery
Uncommon symptoms of GERD (gastroesophageal reflux disease), such as chest pain, chronic cough, and asthma
How Is the Esophageal pH Test Performed?
The equipment used in the esophageal pH test consists of a small probe that is inserted through your nostril and positioned near the lower esophagus. The probe is plugged into a small unit (or monitor) worn on your belt or over your shoulder.
The device has several buttons that, when pressed, record:
The occurrence of symptoms
When you eat and lie down
A nurse will review the monitoring instructions with you.
Be careful with the monitor and keep it dry at all times.
How Should I Prepare for the Esophageal pH Test?
When preparing for the esophageal pH test, do not eat or drink for 4 to 6 hours before your doctor's appointment.
Tell your doctor if you are pregnant, have a lung or heart condition or any other diseases, or are allergic to any medications.
Can I Continue to Take Medication Before the pH Test?
There are several medications that may affect the results of an esophageal pH test. These include:
There are other medications that may affect the test results. Talk to your doctor about all medications you are taking before undergoing the procedure.
Do not discontinue any medication without first consulting with your primary or referring doctor. If proton pump inhibitors need to be discontinued, you will take a week off these medications before doing the test.