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Approach to the patient with abnormal liver biochemical and function tests - UpToDate

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Approach to the patient with abnormal liver tests INTRODUCTION Abnormal liver tests are frequently detected in asymptomatic patients since many screening blood test panels routinely include them [1]. A population-based survey in the United States conducted between 1999 and 2002 estimated that an abnormal alanine aminotransferase (ALT) was present in 8.9 percent of respondents. Although the term "liver function tests" (LFTs) is used commonly, it is imprecise and potentially misleading since many of the tests reflecting the health of the liver are not direct measures of its function.…

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