Analysis index

Exhalation air

Please refer to findings report

Gastrointestinal problems after lactose, fructose or sorbitol (sorbit) absorption. Suspicion of bacterial dysbiosis of the small intestine (glucose-H2 breath test)

H2 breath test – Patient preparation

                                               Please read the following information carefully and adhere to the instructions.

Lactose-, fructose-, sorbit- and glucose breath test

The breath tests are carried out in out laboratory practice and last 3 hours. The tests are solely done in the mornings from 0800 hrs, as you have to be empty-stomached.

Preparation

• Breath tests are only possible from the age of 8
• After gastroscopies and enteroscopies, a 4 week interval is required before breath test can take place
• You need to have been empty-stomached for at least 12 hours, better 14 hours
• Brush teeth evenings and mornings
• Do not smoke (a minimum of 6 hours prior to test and during test)
• Do not chew chewing gum or eat sweets during test
• Do not eat anything during the test
• You may have water and/or unsweetened tea at all times (day before test and on the test day)

Meals

                                               On the day before test

• Do not consume foods with high fibre content (such as wholegrain products, muesli, cabbage, onions, fruits, pulses, sugar, sugary drinks) in the 24 hours before the test
• Preferably consume white bread, low-fat spreads/cheese, margarine, rice, potatoes, lean meat, still water, black tea and coffee)
• Have the last meal around 1800 hours

Sorbit breath test:

Please refer to the preparation as before, however:

• Do not consume products for diabetics before the test
• Do not consume fruits, dried fruits, fruit juices
• If possible use sorbit-free toothpaste

Medication

• Any antibiotic treatment should have been discontinued at least 1 week prior to test
• Acid inhibitors, stomach tablets and/or medication for heartburn should have been taken more than 12 hours before
• Do not take vitamin supplements in the 12 hours before test
• Laxatives, especially bulking agents (also lactulose) should be discontinued at least 3 days before test
• All other medication can be taken on the test day