Alanine Aminotransferase (ALT) (1003)

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Category:

CPT Code:

84460

Test Type: 1.0 mL Serum or Plasma Kit Based
Stability Time:

Stability

Refrigerated: 7 days

Reference Range:
  • Optimal/normal: <40 U/L
  • Borderline:  40-120 U/L
  • Increased Risk:  >120 U/L
  • Alert: >240 U/L

Overview:

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

 

Elevated serum levels indicate liver damage or dysfunction.

Collection Details:

Collection Instructions:

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)

Alternate Specimen

1.0 mL EDTA plasma (0.5 mL minimum) collected in plasma separator tube (Pearl Top)

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated: 7 days