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Choose collection locationBiochemistry · Individual laboratory test
Gamma Glutamyl Transferase (GGT)
GGT is an enzyme used to investigate liver and bile duct changes. It is particularly useful when alkaline phosphatase is also raised.
Price for this test on its ownAED 125Test price AED 25
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
- Sample
- Serum
- Laboratory turnaround
- 24 hours
- Collection
- Dubai
- Laboratory
- Intel Lab
Understanding the test
What does Gamma Glutamyl Transferase (GGT) measure?
Also called Liver & Bile Duct Enzyme
GGT is particularly helpful when ALP is raised and the clinician is trying to determine whether the liver or bile ducts contribute to that change.
When it may be requested
A raised ALP
GGT can help assess whether a change in ALP has a liver or bile duct component.
Medication history
Some medicines influence GGT and are relevant to an unexpected elevation.
Before your sample
Prepare for collection
SpecimenSerum
Your checklist
No fasting is generally needed for GGT alone. Tell the clinician about recent alcohol intake and medicines. For repeat testing, follow the same collection instructions as for the rest of the liver panel.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
Understanding your result
24 hoursLaboratory turnaround
Result guideGamma Glutamyl Transferase (GGT)
Reading your result
A raised level supports further assessment of the wider liver pattern. Its sensitivity to several conditions and medicines prevents it from identifying one cause on its own.
What can affect it
- A raised result is nonspecific and cannot establish alcohol use.
From sample to follow-up
Your testing journey
Laboratory testGamma Glutamyl Transferase (GGT)
- Specimen
- Serum
- Turnaround
- 24 hours
Open your laboratory report
Look for Gamma Glutamyl Transferase (GGT) in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Discuss the next step
Bring your other liver tests and a medicine and supplement list. Ask whether the ALP pattern helps explain the GGT.
Health packages
Packages that include this test
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Clinical expertise
Your laboratory team
Patient questions
Before you book
Does a high GGT show that alcohol caused the change?
Alcohol is only one possible influence. Medicines, bile duct conditions and other liver conditions can also affect it.
Can one night of heavy drinking affect my GGT result?
Yes. Even a single episode of heavy drinking can raise GGT, so avoid alcohol in the days before the test. Be open with your doctor about your usual intake, so that a raised value is interpreted correctly rather than misread as something else.
What if only my GGT is raised and my other liver tests are normal?
An isolated rise in GGT with an otherwise normal liver panel is common and often not a sign of liver damage. It usually reflects alcohol, excess weight, fatty liver or a medicine that stimulates the enzyme. Your doctor will usually review these and repeat the test rather than investigate further straight away.
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Ten liver markers from one blood sample: enzymes (ALT, AST, ALP, GGT), bilirubin and liver proteins.
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- Listed turnaround
- 24 hours
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Blood count, liver, kidney, cholesterol, blood sugar and urine tests: the essentials in one visit.
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- Listed turnaround
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Advanced Health Checkup
A broad whole-body screen covering blood, urine and stool with kidney, liver, lipid, iron, diabetes and vitamin markers.
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- 72
- Samples
- Blood + Urine + Stool
- Listed turnaround
- 24 hours
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Executive Health Checkup
A whole-body screen of blood, urine and stool with kidney, liver, lipid, iron, diabetes and vitamin markers, plus thyroid function and a full…
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- Samples
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- Listed turnaround
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Your next step
Gamma Glutamyl Transferase (GGT) test at home.
Sources & further reading
Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.