Test guide
ALT Blood Test
An ALT test measures the amount of ALT in your blood. This test is commonly used to help diagnose liver damage or disease .
What it is for
An ALT blood test is often part of a routine blood screening to check the health of your liver. The test may also help diagnose or monitor liver problems. Source: MedlinePlus, National Library of Medicine. Medical test information is public domain. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Limitations
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also known as
- Alanine aminotransferase (ALT), Serum Glutamic-Pyruvic Transaminase (SGPT), GPT, Alanine Transaminase
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