quote · Legacy record
…he was doing a breath hydrogen test. If you know the amount of hydrogen someone is exhaling orally, it's a simple matter to extrapolate the amount they're exhaling rectally. This is because a fixed percentage of hydrogen produced in the colon is absorbed into the blood and, and when it reaches the lungs, exhaled. The breath hydrogen test has given flatus researchers a simple, consistent measure of gas production that does not require the subject to fart into a balloon.
…he was doing a breath hydrogen test. If you know the amount of hydrogen someone is exhaling orally, it's a simple matter to extrapolate the amount they're exhaling rectally. This is because a fixed percentage of hydrogen produced in the colon is absorbed into the blood and, and when it reaches the lungs, exhaled. The breath hydrogen test has given flatus researchers a simple, consistent measure of gas production that does not require the subject to fart into a balloon.
Approximate author period: c. 1959 AD · modern
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- Author or tradition
- Mary Roach
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- Approximate author period: c. 1959 AD · modern
Approximate author-period anchor from documented birth year 1959; activity date not established; Wikidata Q444136, https://www.wikidata.org/wiki/Q444136 (accessed 2026-10-08). Not a quotation composition date.
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Supplied reference C; CSV row 377674; supplied attribution, independently unverified
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