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  • Test Details
  • Lab Values
  • Clinical Significance
  • Treatment Options
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Explore this test

Test Code 1003

Test Details

Alanine Aminotransferase (ALT)

ALT is an enzyme that has been reported as present in a variety of tissues. The liver is the major source of ALT.

Methodology

Enzymatic

Patient Preparation

None

Preferred Specimen

Green Top Tube
(Lithium Heparin plasma separator tube with gel)

Alternate Specimen

None

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated: 7 days

Lab Values

Lab Values

Alanine Aminotransferase (ALT)

  • Optimal/normal: <40 U/L
  • Borderline:  40-120 U/L
  • Increased Risk:  >120 U/L
  • Alert: >240 U/L
Test Details
Clinical Significance

Clinical Significance

Alanine Aminotransferase (ALT)

Elevated serum levels indicate liver damage or dysfunction.

Lab Values
Treatment Options

Treatment Options

Alanine Aminotransferase (ALT)

  • Treatment is based on cause of elevation.
  • Consider additional diagnostic tests as indicated.
Clinical Significance