Medical Encyclopedia:
Alanine Aminotransferase Test: Abnormal results
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More about Alanine Aminotransferase Test:
Definition Purpose Preparation Aftercare Normal results Abnormal results |
Low levels of ALT (generally below 300 IU/L) may indicate any kind of liver disease. Levels above 1,000 IU/L generally indicate extensive liver damage from toxins or drugs, viral hepatitis, or a lack of oxygen (usually resulting from very low blood pressure or a heart attack). A briefly elevated ALT above 1,000 IU/L that resolves in 24-48 hours may indicate a blockage of the bile duct. More moderate levels of ALT (300-1,000IU/L) may support a diagnosis of acute or chronic hepatitis.
It is important to note that persons with normal livers may have slightly elevated levels of ALT. This is a normal finding.
[Article by: Michael V. Zuck, PhD]
— Michael V. Zuck, PhD
