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Synonym ⬇

Tubes ⬆ ⬇

Info ⬆ ⬇

Alanine aminotransferase (ALT) is an enzyme found in the liver and in smaller quantities in other tissues including kidneys, heart and muscles. When liver cells are damaged, ALT is released and blood levels increase.

Clinical ⬆ ⬇

ALT may be done to assess liver function in the following conditions:

Additional information:

Nl Result ⬆ ⬇

Consult your laboratory for their normal ranges as these may vary somewhat from the ones listed below.

Conv. units
(U/L)		SI units
(µKat/L)
<1 yr6-450.10-0.77
>1 yr Male10-500.17-0.85
>1 yr Female7-350.12-0.59

Note: Obesity often increases ALT levels.

High Result ⬆ ⬇

Very high levels of ALT may occur in the following conditions:

Mild to moderately high ALT levels may be seen in the following conditions:

Slight increases in ALT levels may be seen in the following conditions:

Chronically elevated ALT levels maybe seen in the following conditions:

Drugs and substances that may cause an increase in ALT levels include:

Low Result ⬆ ⬇

Low ALT levels maybe seen in:

Drugs that may decrease the ALT levels include

References ⬆