The normal range for SGOT (AST) levels is generally between 8 and 45 units per liter of serum. However, normal ranges can vary slightly depending on the laboratory performing the test.
It's important to understand:
- SGOT is now more commonly referred to as AST (Aspartate Aminotransferase). While the terms are often used interchangeably, most modern labs report results as AST.
- This is a reference range, not a definitive cut-off. Values slightly outside this range aren't necessarily a cause for concern, and your doctor will consider your overall health, symptoms, and other test results.
- Normal ranges can vary. Different labs may use different methodologies, which can affect the reported normal range. Always refer to the reference range provided on your lab report.
Factors Affecting SGOT/AST Levels
Several factors can influence SGOT/AST levels, including:
- Liver disease: Elevated levels are often associated with liver conditions like hepatitis, cirrhosis, and non-alcoholic fatty liver disease (NAFLD).
- Muscle injury: Because AST is also found in muscle tissue, muscle injury or strenuous exercise can increase levels.
- Heart problems: Heart attacks or heart failure can also lead to elevated AST.
- Medications: Certain medications, such as statins and some pain relievers, can affect liver enzyme levels.
- Other conditions: Pancreatitis, gallbladder disease, and some infections can also impact AST levels.
What to Do if Your SGOT/AST is Elevated
If your SGOT/AST levels are elevated, your doctor will likely order further tests to determine the underlying cause. This may include:
- Repeat AST/SGOT test: To confirm the initial result.
- ALT (Alanine Aminotransferase) test: ALT is another liver enzyme, and the ratio of AST to ALT can provide clues about the type of liver damage.
- Liver function tests: A panel of tests that assess various aspects of liver health.
- Imaging studies: Such as ultrasound or MRI, to visualize the liver and surrounding organs.
Don't panic if your levels are slightly outside the normal range. Discuss your results with your doctor, who can provide the most accurate interpretation based on your individual circumstances.
