Alanine Aminotransferase (ALT) SGPT Test
About Alanine Aminotransferase (ALT) SGPT Test
| Field | Value |
|---|---|
| Also Known As | Serum Glutamic-Pyruvic Transaminase (SGPT) Test, Alanine Aminotransferase (ALT) Test, SGPT Test, ALT Test |
| Sample Type | Venous blood |
| Fasting Required | Not required |
| Report Time | Within 24 hours |
| Recommended For | All adults; no specific gender or age restrictions |
| Price | Starting at ₹160 |
What Is an Alanine Aminotransferase (ALT) SGPT Test?
The alanine aminotransferase (ALT) SGPT test measures the level of ALT enzyme in your blood. ALT is found mainly in liver cells, and when those cells are damaged, they release ALT into the bloodstream. Doctors order it to check how well your liver is working or to investigate symptoms that may point to liver problems. It is also known as the ALT test, the SGPT test, the serum glutamic-pyruvic transaminase (SGPT) test, or the alanine aminotransferase (ALT) test. A blood sample is drawn from a vein in the arm for this test.
What Does an Alanine Aminotransferase (ALT) SGPT Test Measure?
The alanine aminotransferase (ALT) SGPT test measures a single enzyme: ALT. Understanding what this enzyme does helps explain why this test matters. Here is what the test measures:
| Parameter | What It Reflects |
|---|---|
| ALT (Alanine Aminotransferase) | The amount of ALT enzyme in the blood; raised levels point to liver cell injury or damage |
ALT plays a key role in converting food into energy. It also supports the production of bile, helps break down toxins, and contributes to blood clotting. When liver cells are healthy, very little ALT enters the bloodstream. Higher than normal levels signal that something may be affecting the liver.
Why Is an Alanine Aminotransferase (ALT) SGPT Test Done?
A doctor may request this test for a number of reasons, from investigating specific symptoms to monitoring a known liver condition.
Common Symptoms That May Require This Test
The following symptoms may prompt a doctor to order an ALT test:
- Extreme tiredness or unexplained weakness
- Yellowing of the skin or whites of the eyes (jaundice)
- Dark yellow urine or pale-coloured stools
- Pain or discomfort in the abdomen
- Loss of appetite
- Nausea and vomiting
Conditions This Test Can Help Detect
The SGPT test can help identify a range of liver-related conditions. These include:
- Fatty liver disease (excess fat accumulation in the liver)
- Alcohol-induced liver injury
- Hepatitis (inflammation of the liver), including acute viral hepatitis
- Cirrhosis (long-term scarring and damage to the liver)
- Ischaemic hepatitis (reduced blood flow to the liver)
- Haemochromatosis (a genetic condition involving excess iron build-up in the liver)
- Liver injury caused by toxins or certain medications
Alanine Aminotransferase (ALT) SGPT Test for Chronic Disease Monitoring
For people living with chronic hepatitis B or C, getting regular serum glutamic-pyruvic transaminase (SGPT) tests is a useful way to track liver health over time. A liver specialist may check ALT levels every 3-6 months to confirm that levels are not rising. The test is also used to assess how well treatment is working and to track disease progression in conditions such as non-alcoholic fatty liver disease (NAFLD).
How to Prepare and What to Expect
No special preparation is needed for most people taking this test, but a few simple steps will help ensure an accurate result.
Do You Need to Fast?
No fasting is required for a standalone alanine aminotransferase (ALT) test. However, if your doctor has ordered ALT alongside other liver panel tests, you may need to fast for up to 12 hours beforehand, drinking only water during that period. Check with your doctor or the collection centre when you book.
Practical Tips Before Your Test
Follow these simple steps before your appointment:
- Tell your doctor about all prescription medicines, over-the-counter medications, and dietary supplements you are taking
- Avoid alcohol in the days leading up to the test, as it can alter your results
- Drink plenty of water to stay hydrated
- Wear a loose-sleeved top for easy access to the arm
Step-by-Step Procedure
Here is what to expect during sample collection:
- A trained phlebotomist (a specialist who collects blood samples) will ask you to sit comfortably and extend your arm.
- An elastic band is tied around your upper arm to make the vein more visible.
- The skin over the vein is cleaned with an antiseptic wipe.
- A fine needle is used to draw a small amount of blood into a collection vial.
- The needle is removed, and a cotton swab is pressed gently over the site.
- The labelled sample is sealed and sent to the laboratory for analysis. The entire process typically takes no more than five minutes.
Factors That Can Affect Accuracy
Several factors may influence your alanine aminotransferase (ALT) SGPT test result. These include:
- Alcohol consumption before the test
- Certain medicines, including statins, paracetamol, NSAIDs, and some antibiotics
- Intense physical exercise close to the time of the test
- Obesity, which can raise baseline ALT levels
- Your menstrual cycle
- Vitamin B6 deficiency
Understanding Your Alanine Amino-transferase (ALT) SGPT Test Results
Your results should always be reviewed alongside your doctor, who will consider your full health history before drawing any conclusions. The table below shows a commonly used reference range:
| Parameter | Normal Range |
|---|---|
| ALT (SGPT), Serum | < 50 U/L |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain situations can shift ALT readings from what is expected:
- During pregnancy, ALT levels are typically lower than standard reference ranges due to physiological changes and blood dilution. Doctors account for this when reviewing results.
- In people with obesity, ALT levels tend to be higher, which may not always reflect active liver disease.
- Intense exercise shortly before the test can temporarily raise ALT levels.
- Conditions unrelated to the liver, such as muscle disorders, coeliac disease, thyroid problems, gallstones, and adrenal gland issues, can also cause ALT to rise.
How to Maintain Healthy Levels
A few lifestyle habits support healthy liver enzyme levels:
- Limit or avoid alcohol to reduce the risk of liver cell damage.
- Follow a balanced diet that is low in saturated and trans fats, and include folate-rich foods such as leafy greens and bananas.
- Stay physically active and maintain a healthy body weight, as excess weight is linked to higher ALT levels.
Lupin Diagnostics Alanine Amino-transferase (ALT) SGPT Test Price and Home Collection
The alanine aminotransferase (ALT) SGPT test price starts at approximately ₹160, with home sample collection available across cities. The table below shows indicative prices across major Indian cities:
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹190 |
| Bengaluru | ₹175 |
| Chennai | ₹180 |
| Hyderabad | ₹160 |
| Kolkata | ₹200 |
| Pune | ₹190 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Here are some simple steps to follow:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home collection for the SGPT test across multiple cities, so you can have your sample collected at a time that suits you. All samples are processed in NABL-accredited laboratories, ensuring accurate and reliable results. Your digital report is delivered directly to you via email or WhatsApp within 24 hours.
Frequently Asked Questions
ALT and SGPT refer to the same test. SGPT (Serum Glutamic-Pyruvic Transaminase) is the older name for the enzyme now known as alanine aminotransferase (ALT). The test measures the same enzyme, so the ALT test and the SGPT test are interchangeable terms.
No fasting is required for a standalone alanine aminotransferase (ALT) SGPT test. If your doctor has ordered it as part of a broader liver panel, you may be required to fast for up to 12 hours. Check with your doctor or the collection centre at the time of booking.
When liver cells are injured, ALT is released into the bloodstream, causing levels to rise. Very high levels (more than ten times the normal range) often indicate acute hepatitis from a viral infection. Levels around four times normal may point to chronic hepatitis, a blocked bile duct, or cirrhosis. Your doctor will order further tests to identify the cause.
Yes, several medicines can raise ALT levels, including anti-cholesterol medicines (statins), high doses of paracetamol, NSAIDs such as aspirin and ibuprofen, and certain antibiotics. Always tell your doctor about every medication and supplement you are taking before the test.
People with chronic hepatitis B or C are typically monitored every three to six months by a liver specialist. For adults without known liver conditions, an annual test as part of a routine health check is generally adequate. Your doctor will advise the right frequency for your situation.
Yes, ALT levels can remain within the normal range even in some forms of established liver disease, including chronic hepatitis C and non-alcoholic steatohepatitis. This is why the alanine aminotransferase (ALT) SGPT test is always reviewed alongside other tests and your overall clinical picture, rather than in isolation.
Alanine Aminotransferase (ALT) SGPT Test
