Liver Function Tests (LFT) are a group of blood tests that provide important information about the liver, including its ability to process chemicals and filter toxins from the body.
Here is basic information about LFT Test.
Also Known As | Liver Function Tests |
Type | Blood Test |
Purpose |
check the overall health of the liver |
Sample Type | Blood |
Preparation | No Special Preparation Required |
Fasting | No |
Gender | Unisex |
Age-Group | Above 10 Years |
Normal Value | 8 to 40 U/L |
Reporting Time | 5 - 6 hrs |
Cost | 300 - 800* INR |
*Price range may vary as per location, lab type, and procedure of lab test.
LFT Test Full Form
Full form of LFT Test is Liver Function Tests.
Interesting Facts About Liver
- The liver is the largest internal organ in the human body.
- It performs over 500 vital functions, including detoxification, metabolism, and nutrient storage.
- The liver can regenerate itself, allowing it to recover from certain types of damage.
- It produces bile, a substance necessary for the digestion and absorption of fats.
- The liver plays a crucial role in blood clotting by producing important proteins.
Here are some bullet points regarding LFT test preparation:
Summary
To prepare for an LFT test, inform the doctor about medications, have a blood sample taken, and follow up with the doctor for result discussion.
Here is the LFT Test Procedure:
LFT Test Normal Report PDF
LFT Test Abnormal Report PDF
Here is a table showing the normal range values for the most common liver function tests (LFTs):
LFT Test | Normal Range |
---|---|
Total bilirubin | 0.1 to 1.2 mg/dL |
Direct bilirubin | 0.0 to 0.3 mg/dL |
Indirect bilirubin | 0.2 to 0.8 mg/dL |
ALT (SGPT) | 8 to 40 units/L |
AST (SGOT) | 8 to 40 units/L |
ALP (alkaline phosphatase) | 44 to 147 units/L |
GGT (gamma-glutamyl transferase) | 0 to 51 units/L |
Total protein | 6.0 to 8.3 g/dL |
Albumin | 3.5 to 5.0 g/dL |
Here is a possible LFT Test Interpretation:
LFT Test Component | Normal Range | Interpretation |
---|---|---|
Total Bilirubin | 0.1-1.2 mg/dL | Elevated levels may indicate liver disease, blockage of bile ducts, or other conditions affecting bilirubin metabolism. Low levels indicate Anemia, hypothyroidism, liver disease |
Direct Bilirubin | 0.0-0.3 mg/dL | Elevated levels may indicate liver disease, blockage of bile ducts, or other conditions affecting bilirubin metabolism. Low levels indicate Bile duct obstruction, liver disease |
Indirect Bilirubin | 0.2-0.8 mg/dL | Elevated levels may indicate hemolysis, a condition where red blood cells are destroyed more rapidly than normal |
AST (SGOT) | 8-40 units/L | Elevated levels may indicate liver damage or injury |
ALT (SGPT) | 8-40 units/L | Elevated levels may indicate liver damage or injury |
ALP | 44-147 units/L | Elevated levels may indicate liver disease, bone disorders, or other conditions affecting the liver or bones |
Total Protein | 6.0-8.3 g/dL | Low levels may indicate liver disease, kidney disease, malnutrition, or other conditions affecting protein metabolism |
Albumin | 3.4-5.4 g/dL | Low levels may indicate liver disease, kidney disease, malnutrition, or other conditions affecting protein metabolism |
Globulin | 2.0-3.5 g/dL | Elevated levels may indicate chronic infections, autoimmune disorders, or other conditions affecting protein metabolism |
Here are the specimen requirements for LFT Test.
Specimen | Whole Blood |
Volume | 1.6 ml |
Container | Lavender-top (EDTA) microcollection tube |
Here are the Causes of High LFT Test Results:
Test Name | High Result | Cause |
---|---|---|
ALT (SGPT) | >40 U/L | Liver disease, injury, or infection |
AST (SGOT) | >40 U/L | Liver disease, injury, or infection |
ALP | >130 U/L (adults) < 220 U/L (children) | Liver disease, gallbladder disease, bone disorders |
Total Bilirubin | >1.0 mg/dL | Liver disease, jaundice, hemolysis, blockage of the bile ducts |
Direct Bilirubin | >0.3 mg/dL | Liver disease, gallstones, blockage of the bile ducts |
Indirect Bilirubin | >0.8 mg/dL | Hemolysis is a condition where red blood cells are destroyed more rapidly than normal |
Albumin | <3.5 g/dL | Liver disease, malnutrition, kidney disease, inflammation |
Total Protein | >8.3 g/dL | Dehydration, multiple myeloma, liver disease, kidney disease, inflammation |
Here are the Causes of Low LFT Test Results:
Test Name | Low Result | Cause |
---|---|---|
ALT (SGPT) | <8 U/L | Deficiency of vitamin B6 or protein, severe liver damage |
AST (SGOT) | <8 U/L | Deficiency of vitamin B6 or protein, severe liver damage |
ALP | <44 U/L (adults) < 120 U/L (children) | Malnutrition, hypothyroidism, bone disease |
Total Bilirubin | <0.3 mg/dL | Anemia, hypothyroidism, liver disease |
Direct Bilirubin | <0.1 mg/dL | Bile duct obstruction, liver disease |
Indirect Bilirubin | <0.2 mg/dL |
Brain lesions, strokes, and eye disease |
Albumin | <3.2 g/dL | Malnutrition, liver disease, kidney disease |
Total Protein | <6.0 g/dL | Malnutrition, liver disease, kidney disease |
Note: Normal range for LFT tests may vary slightly depending on the laboratory and testing methods used. These tables are for general information only and should not replace the advice of a medical professional.
Summary
High levels of LFT (Liver Function Test) markers may indicate liver damage or dysfunction, while low levels may suggest impaired liver function or other underlying health conditions.
Here are some possible limitations of the LFT Test.
Here is the potential risk factor of the LFT Test.
Here are Doctor recommendations or consult a specialist after LFT Test.
LFT Test Result | Doctor to Visit | Reason to Visit |
---|---|---|
High | Gastroenterologist | Assess liver function and potential liver disease |
Normal | Primary Care Physician | Routine monitoring and further evaluation if necessary |
Low | Primary Care Physician | Determine the cause and appropriate treatment |
Here are the estimated LFT Test Price in India with different top cities:
City | Price Range (INR)* |
---|---|
Mumbai | 300 - 800 |
New Delhi | 400 - 800 |
Bangalore | 300 - 800 |
Hyderabad | 400 - 800 |
Kolkata | 300 - 800 |
Pune | 400 - 800 |
Lucknow | 300 - 800 |
Noida | 400 - 800 |
Surat | 300 - 800 |
Gurugram | 400 - 800 |
Patna | 300 - 800 |
Chennai | 400 - 800 |
Jaipur | 400 - 800 |
Ahmedabad | 300 - 800 |
*Prices are approximate and vary depending on a specific laboratory or healthcare facility.
Summary
Overall, LFT Test is a blood test that measures the levels of various liver enzymes and proteins, and can help diagnose liver diseases and monitor liver function. Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.
Reference
A Liver Function Test is performed to evaluate liver health, diagnose liver diseases such as hepatitis, cirrhosis, or fatty liver disease, and monitor the effectiveness of treatment.
A Liver Function Test requires a blood sample, which is usually obtained through a vein in the arm.
The interpretation of Liver Function Test results depends on the specific markers measured and the reference ranges used by the laboratory.
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