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Test date: ______________________
Test time: ______________________
Your doctor has asked that you be tested for the sugar circled below:
A breath hydrogen test will help your doctor decide if your body is able to absorb the sugar circled above.
Only one sugar can be tested at a time. If you are doing this test for more than one sugar you must have at least 48 hours between each test.
If you are not able to follow these guidelines for testing, you may not be right for a breath test. Your doctor can help you decide if another test is better for you.
You will give us a baseline breath sample by blowing into a collection bag.
The sugar you are being tested for is dissolved in 8 ounces of water.
You will drink it.
A breath sample is collected at the start of the test and then every 20 to 30 minutes during the test.
The breath sample is put into a machine and analyzed for hydrogen.
If your body is unable to absorb the sugar you are being tested for, hydrogen is produced and an increase of it will be found in your breath.
The test will last 2-3 hours. Bring something to read or do between sample collection times.
2 Weeks Before the Test
No antibiotics. Schedule your breath test at least 2 weeks after your last dose of antibiotic.
Wait at least 2 weeks before, if you have had runny diarrhea, enemas, colonoscopies, or barium studies.
Day Before the Test
Limit your diet. Avoid foods that may produce gas in the intestinal tract. They could cause inaccurate test results.
Foods to Eat
Baked or broiled chicken, fish or turkey (salt and pepper only)
Plain steamed white rice
Clear chicken or beef broth
Plain water, coffee, tea (no sugar/artificial sweeteners or cream added)
Foods to Avoid
Pasta, whole grain products, bran, high fiber cereals
Fruit juices, applesauce, apricots, canned fruit cocktail, grapes, raw and dried fruit like raisins and berries
Vegetable juices, potatoes, sprouts, green/red peppers, squash, broccoli, cauliflower, brussel sprouts, cabbage, corn, kale, lentils
All nuts, seeds, and beans
Milk, cheese, ice cream, yogurt, butter
Do not chew any gum containing mannitol or sorbitol 12 hours before your test.
Do not eat or drink anything other than water after 8:00pm.
If you eat or drink after 8:00pm, the test must be rescheduled.
1 Hour Before Your Test
No smoking, including secondhand smoke
No vigorous exercise
Who to Call
If you have questions about this test or need to reschedule, please call:
Pulmonary Function Lab
Monday – Friday (8:00am – 4:30pm)
If you are a patient receiving care at UnityPoint – Meriter, Swedish American or a health system outside of UW Health, please use the phone numbers provided in your discharge instructions for any questions or concerns.