galactose tolerance test

galactose tolerance test
(for liver function) a test of the liver's ability to convert galactose into glycogen. Two methods may be used; the oral method, which requires about 5 hours to complete, and the intravenous method, which requires about 2 hours and is more accurate. With the oral method, elimination of more than 3 g of galactose in the urine during a 5-hour period indicates liver damage. With the intravenous method, all galactose should have been eliminated from the blood 45 minutes after its injection.

Medical dictionary. 2011.

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