Skip to main content
. 2017 Mar 21;112(5):775–784. doi: 10.1038/ajg.2017.46

Table 1. Preparation before breath testing.

Consensus statement Percentage of agreement Quality of evidence (GRADE)
1. We recommend that antibiotics should be avoided for 4 weeks prior to the breath test. Agree (88.9% agree, 0% uncertain, 11.1% disagree) ⊕⊕⊕⊕
2. A firm position statement cannot be reached due to lack of conclusive data on stopping or continuing pro/prebiotics prior to breath testing. Uncertain (44.4% agree, 44.4% uncertain, 11.1% disagree) ⊕⊙⊙⊙
3. We suggest that, if tolerated by the patient, promotility drugs and laxatives should be stopped at least 1 week prior to breath testing. Agree (77.8% agree, 11.1% uncertain, 11.1% disagree) ⊕⊙⊙⊙
4. We suggest that fermentable foods such as complex carbohydrates should be avoided on the day prior to breath testing. Agree (100% agree, 0% uncertain, 0% disagree) ⊕⊕⊕⊙
5. We suggest that the fasting period for breath testing as part of preparation should be 8–12 h. Agree (77.8% agree, 0% uncertain, 22.2% disagree) ⊕⊕⊙⊙
6. We recommend that smoking should be avoided on the day of breath testing. Agree (100% agree, 0% uncertain, 0% disagree) ⊕⊕⊕⊕
7. We recommend that physical activity should be limited during breath testing. Agree (100% agree, 0% uncertain, 0% disagree) ⊕⊕⊕⊕
8. We suggest that it is not necessary to stop proton pump inhibitors prior to breath testing. Agree (77.8% agree, 11.1% uncertain, 11.1% disagree) ⊕⊕⊙⊙