Nov 4, 2021 · An alanine transaminase (ALT) blood test measures the amount of ALT in your blood. ALT levels in your blood can increase when your liver is damaged, so healthcare …

An ALT blood test checks the health of your liver. ALT is a liver enzyme that gets released into your blood when liver cells are damaged. Learn more.

Jan 29, 2025 · An alanine aminotransferase (ALT) test can show whether you have a liver disease or injury. Learn how this test works and how it can help your doctor diagnose you.

Jun 3, 2025 · An ALT blood test helps check for liver damage. Learn when the test is done, how to prepare and what the results mean.

Dec 6, 2025 · An ALT blood test detects liver enzyme levels, which may suggest liver disease, such as hepatitis. Symptoms include nausea and muscle weakness.

Jan 13, 2025 · The possible causes of high ALT levels in the body include liver disease, alcoholism, obesity, muscle damage, heart failure, and more. Learn about symptoms and …

Sep 25, 2025 · An alanine aminotransferase (ALT) test measures the amount of this enzyme in the blood. ALT is found mainly in the liver, but also in smaller amounts in the kidneys, heart, …

A liver function test, ALT is more sensitive for the detection of hepatocyte injury than for biliary obstruction. ALT is more specific for liver injury than AST (SGOT).

What is ALT in a blood test? Learn about its normal range, what high or low levels mean for your liver health, and how to manage results.

May 14, 2025 · The reference range or normal amount of ALT in the blood varies but is typically 7 to 56 units per liter (U/L). ALT levels are also higher in genetic males compared to genetic …