The normal range for Liver Function Tests (LFTs), specifically Alanine transaminase (ALT) and Aspartate transaminase (AST), is as follows:
| Test | Normal Range (units/litre) |
|---|---|
| ALT | 7-56 |
| AST | 10-40 |
If your LFT results fall between 7-56 units/litre for ALT and 10-40 for AST, your liver function is considered normal. Values outside of these ranges may indicate liver problems or infection and require further medical evaluation.
It is important to note:
- These ranges are general guidelines and may vary slightly depending on the specific laboratory and the testing methods used.
- Always consult with your healthcare provider for a comprehensive assessment of your liver health, as they can interpret your results in the context of your overall health.
- Elevated LFTs do not always indicate serious liver disease; further tests and clinical evaluation are usually needed to determine the cause.
Here's a breakdown of what elevated LFTs can indicate:
- Liver Injury: Elevated ALT and AST can be indicative of damage to liver cells.
- Hepatitis: Viral infections like hepatitis A, B, or C can cause elevated liver enzymes.
- Fatty Liver Disease: Accumulation of fat in the liver can lead to abnormal LFTs.
- Alcohol-Related Liver Disease: Excessive alcohol consumption can cause liver damage.
- Medications and Toxins: Certain medications and toxins can cause temporary or permanent liver damage.
- Other conditions: Rarely, other underlying diseases may lead to abnormal LFTs.
Therefore, if you receive LFT results outside of the normal range, it’s crucial to discuss this with your doctor for diagnosis and treatment as necessary.
