A member asked:

Lactulose breath test... at 90 minutes... reading was 30 ppm of hydrogen. is that considered positive for sibo?

A doctor has provided 1 answer

Dr. David Drewitz answered

Depends...: The absolute value makes no difference in interpreting a hbt. The amount of increase over baseline is what determines a positive from a negative test.

Answered 9/12/2019

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A member asked:

Lactulose breath test... at 90 minutes... reading was 30 ppm of hydrogen. is that considered positive for sibo?

A doctor has provided 1 answer

Dr. David Drewitz answered

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