Not medical advice. This content is educational only and is not a substitute for professional medical advice, diagnosis, or treatment. Medical disclaimer.
ALT (Alanine Aminotransferase)
Measures alanine aminotransferase, an enzyme found mainly in the liver. Elevated levels can indicate liver cell injury from causes such as hepatitis, alcohol, or medication.
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- Sample type
- Blood
- Typical turnaround
- 1-2 business days
- Preparation
- No special preparation required.
Note: Educational summary. Laboratory reference ranges and test availability vary by provider; interpret results with a qualified healthcare professional.
Reference: MedlinePlus (U.S. National Library of Medicine).
Conditions this test helps investigate
The alt (alanine aminotransferase) is among the tests healthcare providers may use to evaluate the following conditions.
Autoimmune hepatitis
Autoimmune hepatitis is a condition that has been associated with Anxiety, Depression, Abdominal pain, Arthral...
Gilbert Syndrome
A common, usually harmless genetic condition in which the liver processes bilirubin less efficiently, causing ...
Hepatitis delta
Hepatitis delta is a condition that has been associated with Fever, Fatigue, Abdominal pain, Jaundice, and Bru...
Isolated polycystic liver disease
Isolated polycystic liver disease is a condition that has been associated with Gastroesophageal reflux, Abdomi...
liver disease, severe congenital
liver disease, severe congenital is a condition that has been associated with Failure to thrive, Vomiting, Dia...
Frequently Asked Questions
What does the alt (alanine aminotransferase) measure?
Measures alanine aminotransferase, an enzyme found mainly in the liver. Elevated levels can indicate liver cell injury from causes such as hepatitis, alcohol, or medication.
What sample type does the alt (alanine aminotransferase) require?
The alt (alanine aminotransferase) typically uses a Blood sample. Your healthcare provider or collection site will confirm the exact procedure.
How long does the alt (alanine aminotransferase) take?
Results for the alt (alanine aminotransferase) are typically available within 1-2 business days depending on the laboratory.
Does this website interpret my test results?
No. SymptomDatabase.com does not interpret laboratory results. Your healthcare provider is responsible for interpreting any test result in the context of your health.