The nurse will insert the wire into the child's nose and down the esophagus until the desired depth is reached. The wire will be secured to the patient’s face with tape. This can take place at the bedside or in the operating room under anesthesia with other procedures.
An X-ray will be performed to verify proper placement of the impedance probe. Small adjustments to the probe placement may be indicated. After proper placement is confirmed, the study will record for approximately 23 hours. The child will remain admitted to the hospital for observation but may go about their daily routine as allowed by his/her physician.
Family participation is expected during the test. A parent or other adult will need to push a button on the recording device when the patient eats a meal, lies down, or is actively having symptoms. This information will help the healthcare team better analyze the test results.