Alanine Aminotransferase (ALT/SGPT)

Alanine Aminotransferase (ALT/SGPT) CPT: 84460


Glutamic Pyruvate Transaminase



Expected Turnaround Time

Within 1 day

Specimen Requirements


Serum (preferred) or plasma


1 mL

Minimum Volume

0.5 mL


Red-top tube, gel-barrier tube, green-top (heparin) tube, or lavender-top (EDTA) tube


Separate serum or plasma from cells within 45 minutes of collection.

Storage Instructions

Maintain specimen at room temperature.

Stability Requirements

Temperature Period
Room Temperature 7 days
Refrigerated 14 days

Patient Information

To screen for liver damage and/or to help diagnose liver disease.

When a healthcare practitioner thinks that you have symptoms of a liver disorder, such as abdominal pain, nausea and vomiting, jaundice (yellowish discoloration of the skin or white of the sclerae), or potential exposure to hepatitis viruses; it can also be ordered as part of a comprehensive metabolic panel (CMP) when you have a routine health exam.

A blood sample drawn from a vein in your arm.

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