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Alanine Aminotransferase (ALT)

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Also known as: ALT; Serum Glutamic-Pyruvic Transaminase; SGPT; GPT; Alanine Transaminase
Formal name: Alanine Aminotransferase

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At a Glance

Why Get Tested?

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

When to Get Tested?

When a healthcare practitioner thinks that you have symptoms of a liver disorder, such as abdominal pain, nausea and vomiting, jaundice (yellow skin), or potential exposure to hepatitis virus; as part of a comprehensive metabolic panel (CMP) when you have a routine health exam

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?