Liver
GGT
Also known as: Gamma-Glutamyl Transferase
What it means
A liver enzyme especially sensitive to alcohol use and bile-duct problems. Often rises before other liver enzymes in early damage.
Typical normal range
Men: 8–61 U/L · Women: 5–36 U/L
Reference ranges vary by lab, age, sex, and pregnancy. Always check the range on your own report.
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Related terms in Liver
SGPT / ALT
An enzyme inside liver cells. Elevated levels mean the liver is stressed or inflamed — common causes are fatty liver, alcohol, or medications.
SGOT / AST
Another liver enzyme, also found in muscles and heart. Usually rises alongside SGPT/ALT when the liver is stressed.
Bilirubin
A yellow waste product the liver clears from your blood. High levels cause jaundice (yellow skin/eyes).
Albumin
The main protein in your blood, made by the liver. Low albumin suggests advanced liver disease, malnutrition, or kidney protein loss.
Total Protein
The sum of albumin + globulin in blood. Doctors use it to screen for liver, kidney, and immune problems.
This is a plain-language explanation for patients, not clinical advice. AI can be wrong. Always confirm with your doctor.