LFT Test at Home
Liver Function Tests (LFT) evaluate liver health by measuring enzymes, proteins, and bilirubin. It helps screen for hepatitis, fatty liver, and other liver disorders.
Medically Reviewed by Dr. Anita Malhotra, MD (Pathologist) — Last Updated: July 8, 2026 | Next Review: January 8, 2027
What Is the LFT Test?
The LFT Test is a critical diagnostic screen performed to evaluate key biomarkers in your blood. Regular testing plays a vital role in the early detection and management of health issues, ensuring you can take proactive control of your wellbeing.
What Does the LFT Test Measure?
| Parameter | What It Shows | Normal Range |
|---|---|---|
| SGPT (ALT) | Enzyme mainly in the liver; key marker for liver cell damage | 7—56 U/L |
| SGOT (AST) | Enzyme in liver, heart, and muscles; assesses tissue damage | 5—40 U/L |
| Bilirubin Total | Yellow waste pigment; elevated levels cause jaundice | 0.1—1.2 mg/dL |
| Alkaline Phosphatase (ALP) | Enzyme related to bile ducts and bones; detects blockages | 44—147 U/L |
| Serum Albumin | Main protein produced by liver; maintains fluid balance | 3.5—5.0 g/dL |
How to Prepare for the LFT Test
Preparing for your home blood test is fast and easy:
- Fasting: Fasting is generally not required for this test.
- Hydration: Drink plenty of plain water before your slot. Staying hydrated helps the phlebotomist locate veins easily.
- Medications: Consult your doctor on whether you should pause any daily supplements or prescription drugs before the test.
Report Turnaround Time
Reports are processed at state-of-the-art NABL-accredited Thyrocare laboratories and delivered digitally via email and SMS within 24 to 48 hours after sample collection.
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Book NowFrequently Asked Questions
What does a Liver Function Test (LFT) show?
LFT measures various blood parameters to evaluate how well your liver is synthesizing proteins, clearing waste products (like bilirubin), and releasing enzymes in response to liver injury or disease.
Is fasting required for an LFT blood test?
Yes. A 10-12 hours overnight fast is recommended for the most accurate LFT results, particularly for bilirubin and albumin levels. You can drink plain water.
How much does an LFT test cost at home?
A complete LFT profile covering all liver enzymes, proteins, and bilirubin parameters starts from ₹ 399, including free doorstep sample collection.
What does elevated SGPT/ALT indicate?
Elevated SGPT/ALT levels indicate liver inflammation or cell damage. Common causes include fatty liver (NAFLD), alcohol consumption, hepatitis viruses, certain medications, or gallstones.
What is the difference between direct and indirect bilirubin?
Direct (conjugated) bilirubin is processed by the liver and is ready for excretion; high levels suggest bile duct blockage. Indirect (unconjugated) bilirubin has not been processed yet; high levels suggest excessive red blood cell breakdown (hemolysis).
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