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The ALT (Alanine Aminotransferase) test — also widely known as the SGPT test — measures the level of the liver enzyme ALT in yo...
Also known as: SGPT Test · ALT Test · Alanine Transaminase · Liver Enzyme Test · Serum Glutamic Pyruvic Transaminase
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The ALT (Alanine Aminotransferase) test — also widely known as the SGPT test — measures the level of the liver enzyme ALT in your blood. ALT is found primarily in liver cells. When the liver is damaged or inflamed, ALT leaks into the bloodstream — causing levels to rise above the normal range. It is one of the most important diagnostic blood tests for liver health — used to detect liver damage, monitor liver disease progression, and assess the impact of medications and alcohol on the liver. No fasting is required.
Key benefits of this package include:
What Does the ALT / SGPT Test Measure?
Liver Enzyme
Alanine Aminotransferase (ALT / SGPT) Unit of measurement: U/L (Units per Litre) Sample type: Serum (blood) Fasting required: No
What Elevated ALT Indicates:
ALT Level
Possible Interpretation
Slightly elevated (1–3x normal)
Fatty liver disease, medication side effects, mild hepatitis
Moderately elevated (3–10x normal)
Active hepatitis (viral or autoimmune), alcohol-related liver disease
Severely elevated (>10x normal)
Acute hepatitis, liver injury, biliary obstruction
Note: ALT results should always be interpreted by a qualified physician in the context of your full clinical picture, symptoms, and medical history.
Trusted by millions of Customers across South India — these are the tests our doctors recommend most.
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