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 providers often use an …

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.

Apr 26, 2024 · A liver enzyme known as ALT plays an important role in breaking down proteins in the digestive process. High levels of ALT in the blood can indicate liver issues.

What is it used 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.

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.

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.

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, …

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 …