Liver Function Guide

ALT, AST, ALP, GGT, bilirubin — understanding your liver blood test results.

Source: American Association for Clinical Chemistry, NLM MedlinePlus.

What Is GGT in a Blood Test?

GGT explained: normal 8-61 U/L, high GGT means alcohol use, bile duct obstruction, or liver disease. Most sensitive marker for alcohol-relat…

What Is ALP in a Blood Test?

ALP explained: normal 44-147 U/L, high ALP from liver (bile duct obstruction) or bone (Paget's, cancer). GGT distinguishes source.…

What Does Elevated Liver Enzymes Mean?

Elevated liver enzymes indicate liver cell damage. Common causes: fatty liver (most common), medications, alcohol, viral hepatitis. Pattern …

What Is a Liver Function Panel?

Liver function panel: ALT, AST, ALP, GGT, bilirubin, albumin, total protein — assesses liver health, bile duct function, and synthetic funct…

What Blood Tests Detect Fatty Liver Disease?

Fatty liver (NAFLD) is suspected with elevated ALT and AST (ALT>AST), metabolic risk factors, and confirmed by imaging. No single blood test…

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