Gamma-glutamyl transferase (GGT) blood test

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April 03, 2026
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  1. GGT blood test (gamma glutamyl tranferase/transpeptidase). Testing.com. https://www.testing.com/tests/gamma-glutamyl-transferase-ggt/. Accessed Feb. 25, 2026.
  2. Kwo PY, et al. ACG Clinical Guideline: Evaluation of Abnormal Liver Chemistries. The American Journal of Gastroenterology. 2017; doi:10.1038/ajg.2016.517.
  3. European Association for the Study of the Liver. EASL clinical practice guidelines: Management of alcohol-related liver disease. Journal of Hepatology. 2018; doi:10.1016/j.jhep.2018.03.018.
  4. Rosenberg J, et al. Approach to elevated liver enzymes. Primary Care: Clinics in Office Practice. 2023; doi:10.1016/j.pop.2023.03.007.
  5. Youssef EM, et al. Subnormal serum liver enzyme levels: A review of pathophysiology and clinical significance. Journal of Clinical and Translational Hepatology. 2024; doi:10.14218/JCTH.2023.00446.
  6. Tamber SS, et al. Biomarkers of liver diseases. Molecular Biology Reports. 2023; doi:10.1007/s11033-023-08666-0.
  7. Friedman LS. Approach to the patient with abnormal liver tests. UpToDate. https://www.uptodate.com/contents/search. Accessed April 10, 2025.
  8. Gamma-glutamyltransferase (GGT), serum. Mayo Clinic Laboratories. https://www.mayocliniclabs.com/test-catalog/overview/8677#clinical-and-interpretive. Accessed Feb. 25, 2026.
  9. Ramandi A, et al. The association between serum gamma-glutamyl transferase and gastrointestinal cancer risk: A systematic review and meta-analysis. Cancer Medicine. 2025 doi:10.1002/cam4.70581.
  10. Brennan PN, et al. Gamma-glutamyl transferase (γ-GT) — An old dog with new tricks? Liver International. 2022; doi:10.1111/liv.15099.
  11. Archer AJ, et al. EASL clinical practice guidelines: Non-invasive liver tests for evaluation of liver disease severity and prognosis. Frontline Gastroenterology. 2022; doi:10.1136/flgastro-2021-102064.
  12. Chung RT, et al., eds. Liver chemistry and function tests. In: In: Sleisenger and Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. 12th ed. Elsevier; 2026. https://www.clinicalkey.com. Accessed Feb. 25, 2026.

Gamma-glutamyl transferase (GGT) blood test