What is the Atmo Gas Capsule Study? 

The Atmo® Gas Capsule Study helps your doctor understand how food moves through your digestive system. It is used to evaluate conditions that affect gut motility, such as delayed stomach emptying (gastroparesis) or slow movement of stool through the intestines. 

The Atmo Gas Capsule Study allows your doctor to measure how long it takes for food to move through your stomach and intestines. You will swallow a vitamin-sized capsule that sends information about temperature and naturally occurring gases in your digestive tract to a small data receiver that you will wear throughout the test. 

What should I expect during this test? 

On the day of your test, you will be given a bar (similar to a protein bar) to eat. After swallowing the capsule, you will be asked to fast again for 6 hours to ensure accurate test results. You may continue most normal daily activities during the study. You will need to wear the data receiver on your body at all times during the study, except when bathing or showering.

What happens to the capsule? 

The Atmo Gas Capsule is disposable and passes naturally with your bowel movement. You should not feel pain or discomfort when the capsule passes. You do not need to retrieve the capsule. If you do not believe the capsule has passed within several days after the test, please contact our office.

What should I expect after the procedure? You will return the data receiver to the MNGI clinic according to your discharge instructions.

Important: Until the capsule has passed, do not undergo an MRI or be near MRI equipment. If you are unsure whether the capsule has passed and need an MRI, contact your MNGI provider for evaluation. Your MNGI provider will review the study data after the receiver is returned and will contact you to discuss the results and any further follow-up that may be needed.

What are the possible complications of the Atmo Gas Capsule Study? 

Complications are uncommon. However, contact your doctor immediately if you experience:

  • Fever
  • Trouble swallowing
  • New or worsening chest pain
  • Abdominal pain or abdominal swelling
  • Persistent nausea or vomiting

If you have any questions, please contact our office at 612-871-1145.