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GGT
Quest Diagnostics1 test optionFrom $8.40
GGT
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Gamma Glutamyl Transferase (GGT)
This test measures the level of GGT enzyme in the blood. GGT is primarily found in the liver and is a sensitive marker for liver diseases and bile duct damage and can aid in the diagnosis and treatment of alcoholic cirrhosis and liver tumors. This test is often used in conjunction with other liver function tests to differentiate between liver and bone disease.
What patients is this test right for?This test can be used to monitor liver function and is particularly useful for individuals suspected of having liver disease or those being monitored for liver conditions.
What type of sample is required for this test?1 mL serum.
Test ResourcesFor more information, please consult your healthcare provider.
Additional test information
Gamma Glutamyl Transferase (GGT) – This test measures the level of GGT enzyme in the blood. GGT is primarily found in the liver and is a sensitive marker for liver diseases and bile duct damage and can aid in the diagnosis and treatment of alcoholic cirrhosis and liver tumors. This test is often used in conjunction with other liver function tests to differentiate between liver and bone disease.
Collection and processing
- Sample type: Serum
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Serum. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
Gamma Glutamyl Transferase (GGT)
This test measures the level of GGT enzyme in the blood. GGT is primarily found in the liver and is a sensitive marker for liver diseases and bile duct damage and can aid in the diagnosis and treatment of alcoholic cirrhosis and liver tumors. This test is often used in conjunction with other liver function tests to differentiate between liver and bone disease.
What patients is this test right for?This test can be used to monitor liver function and is particularly useful for individuals suspected of having liver disease or those being monitored for liver conditions.
What type of sample is required for this test?1 mL serum.
Test ResourcesFor more information, please consult your healthcare provider.
Additional details
Gamma Glutamyl Transferase (GGT) - This test measures the level of GGT enzyme in the blood. GGT is primarily found in the liver and is a sensitive marker for liver diseases and bile duct damage and can aid in the diagnosis and treatment of alcoholic cirrhosis and liver tumors. This test is often used in conjunction with other liver function tests to differentiate between liver and bone disease.
Highlighted health areas
- Cardiovascular
- Liver/Gallbladder
- Metabolic function
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Gamma glutamyl transferase