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SGPT (Alanine Aminotransferase ALT) Test

Alanine transaminase (ALT), also known as SGPT alanine aminotransferase, is an enzyme that is mainly found in your liver, though it exists in other parts of your body.

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What is a SGPT (Alanine Aminotransferase ALT) test? 

ALT (SGPT), which stands for alanine transaminase, is an enzyme that is found mostly in the liver. Usually, when liver cells are damaged, ALT enzymes are released into the bloodstream. An ALT test analyses the amount of ALT in the blood. High levels of ALT in the blood can be an indication of a liver problem, even before you have signs of liver disease, such as jaundice, this condition causes your skin and eyes turning yellow. An ALT blood test might be helpful in the early detection of liver disease.


What are the other names for an SGPT (Alanine Aminotransferase ALT) test? 

Other names for a SGPT test are:

Alanine Transaminase (ALT),

Serum Glutamic-Pyruvic Transaminase, 



What are the test parameters included in an SGPT (Alanine Aminotransferase ALT)?

There is only one parameter: SGPT


What does an SGPT (Alanine Aminotransferase ALT) test measure? 

  • An alanine transaminase (ALT) blood test analyses the amount of ALT in your blood. The ALT levels in your blood can increase when your liver is damaged, so healthcare providers often use an ALT blood test to help assess the health of your liver.

  • Since there are many types of liver problems that can cause ALT levels to increase, healthcare providers don't use this test alone to diagnose conditions. An ALT blood test is most often included in a blood test panel, such as a liver enzyme panel (HFP or LFT) or a comprehensive metabolic panel (CMP). A blood panel analyses several aspects of your blood with one sample and can provide more detailed information about your overall health.


What’s the normal range? 

13 - 69 U/L


Who should get a SGPT (Alanine Aminotransferase ALT) test? 

ALT test is usually used to evaluate whether someone has a liver injury or failure. Your doctor may recommend an ALT test if you have any symptoms of liver disease, including:

  • Jaundice:   yellowing of your eyes or skin.

  • dark urine

  • nausea

  • vomiting

  • pain in the right upper quadrant of your abdomen.

An ALT(SGPT) test is often done with other liver enzyme tests. Checking ALT values along with levels of other liver enzymes can provide your doctor with valuable and more specific information about the liver problem.


An ALT test will be done as a part of a routine checkup or requested if someone has risk factors for liver disease, including:

  • family history

  • Heavy alcohol use

  • exposure to hepatitis

  • Taking certain medications

  • Diabetes


There are other reasons to perfdiabetesorm an ALT test including:

  • monitoring the progression of liver diseases, such as hepatitis or liver failure

  • assessing whether treatment for liver disease should be started

  • evaluating how well treatment is working


Preparations Needed For SGPT (Alanine Aminotransferase ALT) test 

An ALT test doesn’t require any special preparation. Anyhow, you should tell your doctor about any prescription or over-the-counter medications that you are taking. Some of the medications may affect the levels of ALT in your blood. Your doctor may tell you to avoid taking certain medications for a period of time before the test.

What is the cost of a SGPT test?

What is the type of sample required?

This test requires a blood sample.


Who performs a SGPT (Alanine Aminotransferase ALT) blood test?

A healthcare provider, called a phlebotomist, usually performs blood draws, including those for an ALT blood test, but any healthcare provider trained in drawing blood can perform this task. The samples are sent to a lab where a medical laboratory scientist prepares the samples and performs the tests on analysers.


What should I expect during my SGPT (Alanine Aminotransferase ALT) blood test?

You can expect the experience the following during a blood test, or blood draw:

  • You will sit comfortably on the chair, and a healthcare provider will check your arms for an easily accessible vein. This is the inner part of your arm on the other side of your elbow.

  • Once they have located a vein, they will clean and disinfect the area with an alcohol swab.

  • Then they will insert a small needle into your vein to draw a blood sample. This might feel like a small pinch.

  • After they have inserted the needle, the required amount of blood will collect in a test tube.

  • Once they have collected enough blood to test, they’ll remove the needle and hold a cotton ball or gauze on the site to stop any bleeding.

  • They will place a band-aid over the pricked site, and the blood collection is finished.

This process takes less than five minutes.


What should I expect after my SGPT (Alanine Aminotransferase ALT) blood test?

After a healthcare provider has collected the blood sample, they will send it to a laboratory for testing. Once the test results are ready, your healthcare provider will share the results with you.


What are the risks of a SGPT (Alanine Aminotransferase ALT) blood test?

These blood tests are very common and don’t carry any significant risks. You may have a  slight pain like an ant bite when the needle gets inserted, and a small bruise may develop there.


When can I expect my SGPT (Alanine Aminotransferase ALT) results?

These reports are available via email or WhatsApp within 6 hours of the collection of the blood sample.


What do the results of an SGPT (Alanine Aminotransferase ALT) mean?

The blood reports, including alanine transaminase (ALT) test reports, usually provide the following information:

  • The name of the blood test or what was analysed in your blood.

  • And the number or the measurement of your blood test result.

  • The normal measurement values for that test.

  • The information that indicates if your results are normal or abnormal or high or low.


What are normal SGPT (Alanine Aminotransferase ALT) results?

The normal range for alanine transaminase (ALT) may vary from laboratory to laboratory. One common reference range for an ALT blood test is 13 to 69 U/L (units per liter). ALT values are typically higher in people assigned male at birth than in people assigned female at birth.

Since the normal ranges can vary depending on the laboratory, it’s important to check your test result report to see what your specific lab’s reference range is.


What other tests might I have along with this test?

Liver Function Test 

How to book a SGPT (Alanine Aminotransferase ALT)  test at home?

Log into and submit your details. Our highly trained, professional, and vaccinated eMedics will be at your doorstep within 60 minutes or at the time booked by you.

FAQs on SGPT Test

What does it mean if SGPT is high?

SGPT is released into the bloodstream when the liver or heart is damaged. Then it can be indicative of conditions such as hepatitis, cirrhosis of the liver, or inflammation. Some medications may also raise the SGPT values.

When is it considered a serious level in SGPT?

SGPT values of more than 500 U/L are considered serious.


What does SGPT mean in a blood test?

Serum glutamic pyruvic transaminase is an enzyme that is normally found in liver and heart cells. SGPT is released into the bloodstream when there is damage to the liver or heart.


Does high SGPT mean fatty liver?

At a high SGPT value, you cannot find a fatty liver. Fat in the liver usually does not produce any specific signs or symptoms. A fatty liver can be detected on an ultrasound scan, CT scan, or MRI scan of the liver.

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