Overview of Breath Testing in Clinical Practice in North America

JPGN Rep. 2020 Dec 3;2(1):e027. doi: 10.1097/PG9.0000000000000027. eCollection 2021 Feb.

Abstract

Human breath is an easily, noninvasively obtained substance. It offers insight into metabolism and is used to diagnose disaccharide malabsorption, infection, small bowel bacterial over growth, and transit times. Herein, we discuss the readily available clinical breath tests, how they function, how they are administered and interpreted and some pitfalls in their use.

Keywords: bacterial overgrowth; breath hydrogen; breath methane; breath testing; fructose; lactose; pediatrics; stable isotopes; sucrose.

Publication types

  • Review