An LFT scan actually refers to Liver Function Tests (LFTs), which are a group of blood tests used to detect, evaluate, and monitor liver disease or damage. The term "scan" is a common misnomer. These tests don't involve imaging like a typical scan, but rather analyze components in your blood to assess how well your liver is functioning.
Understanding Liver Function Tests (LFTs)
Here's a breakdown of what you need to know about LFTs:
- Purpose: LFTs help doctors:
- Detect liver damage or disease.
- Monitor the progression of liver conditions.
- Assess the effectiveness of liver treatments.
- What They Measure: LFTs typically measure the levels of various enzymes, proteins, and bilirubin in your blood. Abnormal levels can indicate liver problems.
Common LFTs and What They Indicate
| Test | What it Measures | Possible Implications of Elevated Levels |
|---|---|---|
| Alanine Aminotransferase (ALT) | Enzyme found mainly in the liver. | Liver damage, hepatitis. |
| Aspartate Aminotransferase (AST) | Enzyme found in the liver, heart, and muscles. | Liver damage, heart problems, muscle injury. |
| Alkaline Phosphatase (ALP) | Enzyme found in the liver, bones, and bile ducts. | Liver damage, bone disorders, bile duct obstruction. |
| Bilirubin | Waste product produced from the breakdown of red blood cells. | Liver damage, bile duct obstruction, hemolytic anemia. |
| Albumin | Protein made by the liver. | Liver disease, kidney disease, malnutrition. |
| Total protein | Measures the total amount of protein in the blood. | Liver disease, kidney disease, nutritional deficiencies, inflammation. |
Why are LFTs Important?
- Early Detection: LFTs can help detect liver problems early, even before you experience symptoms.
- Monitoring Chronic Conditions: For people with existing liver conditions, LFTs are essential for monitoring the disease's progression and the effectiveness of treatment.
- Diagnosis of Underlying Issues: Abnormal LFT results can prompt further investigation to identify the specific cause of the liver problem.
In Summary
Instead of referring to an "LFT scan," remember that LFTs are a group of blood tests crucial for evaluating liver health. They provide valuable information that helps healthcare professionals detect, monitor, and manage liver-related conditions. These tests are performed together to detect, evaluate, and monitor liver disease or damage .
