Fructose tolerance test

Normal people take (0.25g / kg) fructose and return to normal after 2h. Increased fructose in blood and urine seen 2 hours after taking fructose is seen in fructoseuria and hereditary fructose intolerance. The former is caused by a deficiency of fructokinase, while the latter has hypoglycemia while fructose is elevated. Fructoseuria is normal in blood glucose of. Fructose-1,6 diphosphatase deficiency may increase in the determination of fructose.

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