GI Effects Collection Instructions

  • not have a colonoscopy or barium enema.

  • If taking antibiotics, antiparasitics, antifungals, or probiotic supplements (acidophilus, etc.), it is recommended that you wait a minimum of 14 days after your last dose before beginning the test; 28 days may be preferred after antibiotics have been utilized.

  • For H. pylori add-on testing, discontinuation of PPIs, antibiotics, and bismuth is recommended.

  • Unless directed otherwise by your provider, discontinue aspirin and other NSAIDs (i.e. ibuprofen), rectal suppositories, enemas, activated charcoal, bismuth, betaine HCl, digestive enzymes, antacids, laxatives, mineral oil, castor oil, and bentonite clay.

  • We do not suggest collecting during an acute gastrointestinal infectious illness.

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  • Plan Your Collection

    Use a calendar to plan your specimen collection. Ship Monday thru Friday and avoid US holidays which may cause delays. Please return specimens within 24 hours after collection.

SIBO Testing Collection Instructions

  • from your last colonoscopy or barium enema.

  • from your last dose of antibiotics, antifungals, Pepto-Bismol®, or herbal/natural antimicrobial products.

  • do not use laxatives, stool softeners, stool bulking agents, antacids containing aluminum, or magnesium hydroxide.

  • n limit diet to only: meat/poultry/fish/seafood that is not cured or brined, plain steamed white rice, eggs, clear meat broth (no bone/ cartilage or vegetables), fats/oils (coconut, olive, vegetable oils, butter, or lard), salt and pepper (no other herbs/spices), weak black coffee and/or weak black tea (no sweeteners or cream, no green or herbal teas), plain water (no mineral water or water with additives) Do not take probiotics.

  • do not eat or drink anything other than water. Do not take non-essential medications or supplements unless your doctor has advised you otherwise. Do not chew gum, eat candy, or use mouthwash or toothpaste.

  • not smoke or inhale second-hand smoke. Do not sleep or exercise. Do not eat or drink anything during the collection. Water is okay after collecting Tube 5.

  • Do not collect during acute infectious illness.

  • Do not use if you are allergic to lactulose or on a galactose/ lactose restricted diet. Diabetics should proceed with caution.

  • 1. Watch the video on this page

    2. Follow the Preparation & Timing requirements.

    3. Choose a time to begin and fill in the chart provided within the kit with the time you will collect each tube.

    4. Follow the breath collection steps for each tube.

    5. When you have collected all necessary tubes, enter your collection times and activate your test at gdx.net/activate.

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