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Why do GGTP results from two different laboratories (209 IU/L and 262 IU/L) differ, despite no changes in diet and lifestyle?
Hello. In one laboratory I had a ggtp result of 209, after five days I went to another laboratory and there the ggtp test was 262. Why such a difference? Keeping a diet without drinking alcohol two different results. Which one is correct? Should I go and do a test in this first laboratory and then compare the results?
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Anna Lewandowska Pharmacist, Editor
2 days ago
Differences in GGTP (gamma-glutamyl transpeptidase) test results can be caused by several factors. First of all, standards for GGTP can vary depending on the laboratory, methods used, and equipment. Reference values for GGTP are typically up to 40 IU/L for males and up to 35 IU/L for females.
I encourage you to consult your doctor to interpret the results.
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