Ordering the ALT (SGPT) Test
Ordering the ALT (SGPT) test can help assess liver function by measuring the level of alanine aminotransferase in your blood. Interestingly, ALT levels can also be affected by muscle damage, not just liver issues.
When you order this test, you can expect the following benefits:
- Helps detect liver damage early
- Monitors the effectiveness of treatments for liver conditions
- Assists in diagnosing liver diseases
- Evaluates the impact of medications on the liver
- Provides insight into unexplained fatigue
Who Should Consider the Test
People experiencing persistent tiredness without a clear cause might find this test beneficial. It can provide clarity on whether liver function is a contributing factor.
Consider ordering this test if you:
- Have a family history of liver disease
- Consume alcohol regularly
- Are taking medications that affect the liver
- Experience unexplained nausea
- Have been exposed to hepatitis viruses
Checking your ALT levels can help identify liver issues before they become more serious. Delaying this test might mean missing early signs of liver damage, which could lead to more complex health challenges later.
How to Prepare for the Test
Fasting is not required for the ALT (SGPT) test, so you can eat and drink normally before your appointment. It’s important to follow any instructions from your doctor or healthcare professional to ensure the test results are as informative as possible.
Labs Included When Ordering Your ALT (SGPT) Test
| Test Name | Reference Range | Significance | Low and High Levels of ALT (SGPT) |
|---|---|---|---|
| ALT (SGPT) | 7-56 | ALT is an enzyme found in the liver that helps convert proteins into energy. High levels can indicate liver damage or disease. | High levels mean potential liver damage or disease.
Low levels mean generally not a concern. |
Reference ranges may differ. Visit the Quest Diagnostics lab test directory for the latest values.
ALT (SGPT) FAQ
Is there ALT testing near me?
To find nearby locations for ALT testing, use the patient service center locator, which includes mobile phlebotomy options. This is especially useful if you need quick access to testing due to ongoing liver monitoring.
What is the cost of the test?
The cost of the ALT test includes all fees, such as sample collection at patient service centers. It’s worth ordering to monitor liver health, especially if you’re experiencing unexplained fatigue.
How often should I retest?
Retesting every 6 to 12 months is advisable if you have ongoing liver concerns. Regular monitoring can help track changes in liver function over time.
How accurate is the test?
The ALT test uses a spectrophotometric method to measure enzyme levels, ensuring precise results. TrueHealthLabs.com partners with CLIA-certified laboratories to uphold rigorous testing standards for dependable results.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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