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Used in conjuction with ALT and AST to better evaluate liver function, GGT (gamma glutamyl transpeptidase) is an enzyme produced by the liver. It is used by doctors to diagnose obstructions in the biliary system, pancreatitis and liver disease. GGT may also be elevated in liver and pancreatic cancer, alcoholism, and is sometimes used as a marker for tumor progression as well as evaluating response to treatment.
An 8 to 12 hour fast is required for this blood test. However, drink plenty of water and take your medications as prescribed.
The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.
Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.