LFT Test: Full Form, Normal Range, SGOT SGPT & Price

A liver function test is often ordered when a doctor wants to know whether your liver is healthy, inflamed, or under stress from fatty liver, alcohol, infection, or medicines. This guide explains the LFT full form, what each value means, normal ranges, what a high result can mean, and what an LFT can and cannot detect.

What Is a Liver Function Test? (LFT Full Form)

LFT stands for Liver Function Test. It is a group of blood tests, also called a liver profile or liver panel, that measure enzymes, bilirubin, and proteins in your blood to show how well your liver is working. Strictly speaking, some of these values (enzymes like SGPT and SGOT) show liver cell injury rather than function, while others (albumin, bilirubin) reflect how well the liver is actually performing its jobs.

What Does the Liver Do? (7 Key Functions)

• Makes bile to help digest fats
• Filters blood and breaks down toxins, alcohol, and medicines
• Produces proteins such as albumin and blood-clotting factors
• Processes carbohydrates, fats, and proteins into usable energy
• Stores glucose as glycogen and releases it when needed
• Stores vitamins and minerals such as iron and vitamin A, D, B12
• Makes cholesterol and breaks down old red blood cells (producing bilirubin)

Liver Function Test List: What Is Included

• SGOT / AST (Aspartate Aminotransferase)
• SGPT / ALT (Alanine Aminotransferase)
• Alkaline Phosphatase (ALP)
• Total Bilirubin, Direct Bilirubin, Indirect Bilirubin
• Total Protein
• Serum Albumin and Serum Globulin
• A/G Ratio
• GGT (Gamma-Glutamyl Transferase) — sometimes added as a separate test

SGOT and SGPT Normal Range

SGPT (ALT) is more specific to the liver, while SGOT (AST) is also found in muscle and heart, so both are read together. As a general guide for adults:

• SGPT (ALT): approximately 7-56 U/L
• SGOT (AST): approximately 10-40 U/L
• Values are often slightly higher in men than in women

Liver Function Test Normal Range Chart

• Total Bilirubin: approximately 0.2-1.2 mg/dL
• Direct Bilirubin: up to approximately 0.3 mg/dL
• Alkaline Phosphatase (ALP): approximately 44-147 U/L
• Total Protein: approximately 6.0-8.3 g/dL
• Albumin: approximately 3.5-5.0 g/dL
• GGT: approximately 9-48 U/L (varies by sex and lab)

These ranges differ between labs and between adults and children, and ALP is normally higher in children, teenagers, and pregnant women. Always compare your result with the range printed on your own report.

How to Read Your LFT Report

Each line shows your result, the unit, and the lab's reference range, with high or low values usually flagged. Doctors read the pattern rather than a single number: raised SGPT and SGOT point to liver cell injury, raised ALP and GGT point towards the bile ducts, raised bilirubin points to jaundice, and low albumin points towards long-standing liver problems or other causes such as poor nutrition or kidney loss.

What Causes High SGPT and SGOT (High Liver Enzymes)?

• Fatty liver (the most common cause of mildly raised enzymes)
• Alcohol-related liver injury
• Viral hepatitis (A, B, C, E)
• Medicines such as some painkillers, antibiotics, and statins
• Herbal products and supplements
• Gallstones or bile duct blockage
• Intense exercise or muscle injury (can raise SGOT)

What Causes High Bilirubin or Low Albumin?

High bilirubin can come from liver disease, bile duct blockage, hepatitis, or increased breakdown of red blood cells, and when high enough it causes yellow eyes and skin. Low albumin can reflect long-standing liver disease, but also poor nutrition, kidney protein loss, or chronic inflammation, so it is read alongside other tests.

Fatty Liver Symptoms

Fatty liver is usually silent. When symptoms appear they are vague:

• Persistent tiredness or weakness
• Mild discomfort or fullness in the upper right abdomen
• Unexplained weight gain or an enlarged waistline
• Mildly raised liver enzymes found on a routine blood test
• Often no symptoms at all

Can an LFT Detect or Confirm Fatty Liver?

An LFT can hint at fatty liver when SGPT, SGOT, or GGT are raised, but it cannot confirm it — and plenty of people with fatty liver have completely normal LFT values. Confirming fatty liver needs an abdominal ultrasound or an elastography scan, which your doctor may order if your LFT, weight, or sugar and cholesterol levels suggest it.

Signs of Liver Damage or Poor Liver Function

• Yellowing of the eyes or skin (jaundice)
• Dark urine and pale stools
• Persistent fatigue and weakness
• Nausea, vomiting, or loss of appetite
• Itchy skin
• Pain or swelling in the abdomen, or swollen legs
• Easy bruising or bleeding

Early liver disease often causes none of these, which is why a routine LFT is useful if you have risk factors such as obesity, diabetes, heavy alcohol use, or long-term medication.

When Should You Worry About LFT Results?

Slightly raised values are common and often settle after the cause is addressed. Results that deserve prompt medical attention include enzymes several times above the upper limit, high bilirubin with visible jaundice, or any abnormal LFT together with symptoms such as dark urine, pale stools, abdominal swelling, confusion, or vomiting blood. There is no single universal 'dangerous' number — your doctor interprets the pattern with your symptoms.

How to Reduce SGPT and Support Your Liver

Lowering raised enzymes means treating the cause. Common steps include avoiding alcohol, losing excess weight gradually, exercising regularly, cutting back on fried food, sugary drinks, and processed snacks, eating more vegetables, fruit, whole grains, and pulses, and reviewing medicines and supplements with your doctor. No single drink, vitamin, or 'detox' product repairs the liver, and some herbal supplements can actually harm it, so avoid starting new ones without medical advice.

Can Liver Function Go Back to Normal?

Often yes, when the cause is found and removed early — for example stopping alcohol, treating fatty liver through weight loss, or stopping a medicine that was affecting the liver. Advanced scarring (cirrhosis) does not fully reverse, but proper management can slow or stop further damage.

Is Fasting Required for a Liver Function Test?

Usually not. Some labs advise 8-12 hours of fasting, especially when the LFT is combined with blood sugar or a lipid profile, and you should avoid alcohol for at least 24 hours before the test. Plain water is fine.

How Is a Liver Function Test Done?

A small blood sample is drawn from a vein in your arm, which takes only a couple of minutes, and the serum is analysed on an automated analyzer. You can resume normal activities straight away.

LFT vs CBC vs KFT: What's the Difference?

A CBC (Complete Blood Count) counts your blood cells and hemoglobin. An LFT checks the liver, and a KFT (Kidney Function Test) checks the kidneys through values like creatinine and urea. They test different organs and are often booked together in a routine health checkup.

Can an LFT Detect Hepatitis or Alcohol-Related Liver Damage?

An LFT shows that the liver is inflamed or injured but not why. Diagnosing viral hepatitis needs specific tests such as HBsAg, anti-HCV, or hepatitis A and E IgM. For alcohol-related injury, doctors look at the pattern — for example SGOT higher than SGPT with a raised GGT — together with your history, but the LFT alone is not a diagnosis.

Liver Function Test in Pregnancy

Doctors order an LFT in pregnancy mainly when there is severe itching (which can signal cholestasis of pregnancy), upper abdominal pain, severe nausea, or high blood pressure. ALP normally rises during pregnancy because the placenta produces it, so it is interpreted differently.

Liver Function Test Price and Report Time

Our liver function test is priced at 350, with same-day reports and free home sample collection available — so you don't need to visit the lab in person or wait days for results.

Liver Function Test in Panchkula, Chandigarh & Nearby Areas

Shyam Budget Friendly Labs provides accurate liver function testing with convenient home blood sample collection for patients across Panchkula, Chandigarh, Mohali, Zirakpur, Sector 21 Panchkula, Karimpur, Pinjore, and Kalka.

Key Takeaways

• LFT stands for Liver Function Test — a panel of enzymes, bilirubin, and proteins measured in one blood sample
• SGPT is the more liver-specific enzyme; SGOT is also found in muscle and heart
• A high enzyme result means the liver is stressed, not what is causing it — the cause needs further evaluation
• An LFT cannot confirm fatty liver or diagnose viral hepatitis on its own
• Fasting is usually not required, but avoid alcohol for 24 hours before the test