methacetin breath test

methacetin breath test
(for liver function) a breath test in which the fasting patient is administered a dose of methacetin labeled with carbon 13 and breath levels of carbon dioxide are measured at regular intervals; low levels of carbon dioxide indicate liver dysfunction such as cirrhosis.

Medical dictionary. 2011.

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  • methacetin — me·thac·e·tin (mə thasґə tin) the methyl derivative of phenacetin, measured in a liver function test; see methacetin breath test, under test. Called also p acetanisidine …   Medical dictionary

  • liver function test — see specific tests, such as aminopyrine breath t., fructose tolerance t., galactose breath t., lipase t., methacetin breath t., monoethylglycinexylidide t., rose bengal t., and sulfobromophthalein excretion t. Increased levels of alanine… …   Medical dictionary

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