Book SGPT Test — Purpose, Normal Range & Price

The Alanine Transaminase (ALT) test, commonly known as the SGPT test, is a blood test that measures the level of the enzyme alanine transaminase in the blood. ALT is an enzyme found predominantly in liver cells and plays a key role in converting proteins into energy for liver cells. Under normal conditions, ALT is present in the blood in small amounts. When liver cells are damaged or inflamed, they release larger quantities of ALT into the bloodstream, causing blood levels to rise significantly. Because ALT is found almost exclusively in the liver, it is considered the most specific blood marker of liver cell damage currently available in routine diagnostics. An elevated SGPT is one of the earliest and most reliable signs that the liver is under stress, making this test an essential component of any liver function evaluation. It is widely used across Indian hospitals and diagnostic centres as part of the Liver Function Test (LFT) panel and as a standalone test when liver disease is suspected. The test involves a simple blood draw of approximately 2 ml from a vein in the arm and is completed in under five minutes.

Doctors prescribe an SGPT test in the following situations: Evaluating liver health when a patient presents with symptoms such as jaundice, yellowing of the skin or eyes, dark urine, pale stools, abdominal pain in the upper right side, nausea, fatigue, or unexplained weight loss. Diagnosing liver conditions including viral hepatitis A, B, and C, alcoholic liver disease, non-alcoholic fatty liver disease (NAFLD), and drug-induced liver injury, all of which are commonly encountered in India. Monitoring patients with known liver disease to track the progression of the condition and evaluate the effectiveness of treatment. Screening individuals at high risk of liver disease including heavy alcohol consumers, obese individuals, diabetic patients, and those with a family history of liver conditions. Given the rising prevalence of diabetes and obesity in India, NAFLD-related liver damage has become increasingly common. Monitoring patients on long-term medications that are known to affect liver function, including statins, antitubercular drugs, antiepileptic medicines, and certain antibiotics. Pre-operative liver function assessment before any surgical procedure requiring anaesthesia. Routine preventive health screening as part of a complete health checkup for individuals above 30 years of age.

The SGPT test measures the concentration of Alanine Transaminase enzyme in the blood, reported in units per litre (U/L). Normal SGPT Range in India The normal reference range for SGPT in adults as followed by most Indian diagnostic laboratories is as follows. For men, a normal SGPT level is between 7 and 56 U/L. For women, a normal SGPT level is between 7 and 45 U/L. Values may vary slightly between laboratories depending on the assay method used, which is why your report will always include the specific reference range of the processing lab. Interpreting SGPT Results A mildly elevated SGPT between 56 and 150 U/L may indicate early fatty liver disease, mild hepatitis, or the effect of certain medications. This range is increasingly common in Indian patients with metabolic syndrome, obesity, or type 2 diabetes. A moderately elevated SGPT between 150 and 500 U/L suggests significant liver inflammation or injury and warrants further investigation including a full liver function panel, ultrasound, and viral hepatitis screening. A severely elevated SGPT above 500 U/L indicates acute liver injury and may be seen in acute viral hepatitis, drug-induced liver toxicity, or ischaemic hepatitis. This requires urgent medical evaluation. It is important to note that a single elevated SGPT reading does not confirm a specific diagnosis. Your doctor will interpret the result alongside other liver function parameters, clinical history, and imaging findings.

Preparation for an SGPT test is straightforward. Fasting is not required for a standalone SGPT test. You can eat and drink normally before sample collection. If SGPT is part of a liver function panel that includes other fasting parameters, fast for 8 to 10 hours as advised. Our team confirms preparation requirements at the time of booking. Avoid alcohol consumption for at least 24 hours before the test as alcohol directly affects liver enzyme levels and can produce falsely elevated SGPT readings. Inform the phlebotomist about all medications, supplements, and herbal remedies you are currently taking. Many commonly used medicines in India including antitubercular drugs, statins, paracetamol in high doses, and certain ayurvedic formulations can significantly affect SGPT levels. Avoid strenuous exercise for 24 hours before the test as intense physical activity can temporarily raise liver enzyme levels. Stay normally hydrated before sample collection. Drinking water normally before the test is recommended.

If you are booking through the SecondMedic platform the SGPT test price starts at approximately Rs. 225. The exact price will be confirmed at the time of booking through SecondMedic. If your doctor has prescribed multiple tests alongside SGPT, SecondMedic health packages include SGPT as part of a broader liver function panel at a significantly lower combined price.

SecondMedic provides home sample collection for SGPT test across all major areas of India. You do not need to visit a lab or collection centre. A certified and trained phlebotomist comes to your home or workplace at your chosen time, collects the sample using sterile single-use equipment, and ensures it is transported to the NABL-accredited lab within the required time window for accurate processing. Please note that SecondMedic provides free home sample collection on all tests priced above Rs. 300. Our team will check your pincode and confirm if your address falls under our free sample collection eligibility criteria, which depends upon the lab location and phlebotomist availability. Home collection is available between 7 AM and 10 PM, seven days a week, including Sundays and public holidays. Enter your pincode on the booking page or call our helpline to confirm availability at your address.