WhatDoMyLabResultsMean.com

Liver / Pancreas

Gamma-Glutamyl Transferase (GGT)

Also known as: GGTP, Gamma-GT, GTP

CPT 84484Quest 1759LabCorp 049621
When to Seek Prompt Care

No common urgent flag from this test alone. However, symptoms like severe yellowing of the skin or eyes (jaundice), sudden severe abdominal pain, or persistent vomiting should always prompt immediate medical attention.

What It Measures

This test checks how much GGT is in your blood. GGT is a special helper protein. It is mostly found in your liver. It helps your body's chemical reactions happen faster.

Why It's Ordered

Doctors often order this test to check for liver or bile tube problems. This is especially true if you feel tired, have yellow skin, or have belly pain. The test can also help tell if liver damage is from a liver problem or a bone problem. Sometimes, it helps doctors check on alcohol use.

Reference Range

GGT levels can vary based on age, sex, and other factors. Your results should always be interpreted by your doctor, as ranges vary by lab and can be affected by medicines, alcohol, and even recent meals.

Clinical Reference

Quest: 1759
LabCorp: 049621
CPT: 84484
ICD-10: I21.9, R07.9, I50.9, I48.91

Medicare covers for acute cardiac evaluation

Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.