Classification of liver test abnormalities

Hepatitis (hepatocellular)

ALT ≥3 x ULN

R ≥5

Cholestasis

ALP ≥2 x ULN

R ≤2

Mixed

ALT ≥3 x ULN

ALP ≥2 x ULN

R >2 to <5

ALT: alanine aminotransferase; ALP: alkaline phosphatase; ULN: upper limit normal; R: ALT/ULN divided by ALP/ULN.

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