SIBO Breath Testing with Dr. Carr-Update as of March, 2021

Update regarding Lactulose Breath Testing for SIBO

We are resuming in-office lactulose hydrogen-methane breath testing for certain patients, in the Fullerton office only.

We are helping most patients to perform a very good new type of breath testing that includes testing for hydrogen sulfide as well as hydrogen and methane.  This test is called Trio-Smart.  It is provided using a kit that can be used at home or in the office.  At this time, we will help patients to receive this kit at home, and we will take care of helping patients to get the lactulose dose, which is not included in the testing kit.  The website for this new test is

See the other page on this website about the Trio-Smart breath testing.

Fax number to send orders for breath testing is 714-446-7910.  Phone number for messages to Dr Carr’s office is 714-446-5831 ext 1322.  We now also have an email address to aid in scheduling patients.  Please continue to include patient email addresses on the forms for ordering breath testing.  This makes it much easier to communicate with your patients.

Thank you for asking us to help patients who need breath testing to detect SIBO and IMO, and we hope you and your families all remain well during this challenging time.