Bilirubin Indirect Test
Check Liver Functions

Disease.
Kidney & Liver Function Tests, Infectious Disease Tests

Department.
Biochemistry

TAT.
1 Day
Sample Type
- 2 mL (1 mL min.) serum from 1 SST.
What Is A Bilirubin Indirect Test?
Bilirubin, a yellow pigment produced from the breakdown of red blood cells, exists in two forms, direct (conjugated) and indirect (unconjugated). Indirect bilirubin needs to be converted into a form that can be excreted from the body as it is not water soluble. The Indirect Bilirubin test measures the level of unconjugated bilirubin in the blood.
This test is usually done to diagnose liver diseases, hemolytic anemia or conditions that affect red blood cell breakdown. High levels of indirect bilirubin can indicate excessive red blood cell destruction, liver dysfunction or bile duct obstruction. It is often part of a comprehensive liver function test panel. Doctors recommend this test if symptoms like jaundice, fatigue or unexplained anemia occur. Early diagnosis through this test helps in timely intervention and effective management of liver-related and hematologic disorders.
How is the Test Performed?
Preparation
Your doctor will advise you to fast before taking the test.
Sample Collection
The test requires a small blood sample drawn from a vein and stored in a sterile vile.
Lab Testing
The blood sample is tested using spectrophotometry or chemical assays to measure the concentration of indirect bilirubin.
Processing Time
Results are typically available within a few days.
What are the symptoms that prompt this test?
The most common symptoms that warrant this test are:
Adults
- Yellowing of skin and eyes (jaundice)
- Dark-colored urine
- Fatigue and weakness
- Abdominal pain or swelling
- Nausea and vomiting
- Loss of appetite
Children
- Neonatal jaundice (yellow skin in newborns)
- Difficulty feeding
- Excessive sleepiness
- High-pitched crying
- Pale stools
What are Normal Ranges for This Test?
Normal indirect bilirubin levels vary by age and testing method. Below are general ranges:
Adults – 0.2–0.8 mg/dL
Newborns – Up to 1.0 mg/dL (may vary depending on age in hours/days)
**The above mentioned range is for information purpose only. Normal levels are dependent on a number of factors including age, gender how the test is performed and health condition of patient etc. Result interpretation should be done by a qualified doctor or healthcare professional.**
What Happens if Test Results Show Abnormal Levels?
Based on abnormal results, your doctor may recommend medications, lifestyle changes or addressing the underlying cause. Severe conditions may require hospitalization. If the indirect bilirubin levels are too high, your doctor may recommend further investigation and testing. Possible causes of high levels include hemolytic anemia, liver disease, bile duct obstruction or genetic disorders like Gilbert’s syndrome.
Additional testing may include:
- Liver function tests (LFTs)
- Complete blood count (CBC)
- Reticulocyte count
- Direct bilirubin test
- Hemolysis markers like lactate dehydrogenase (LDH)
Why Choose Genex?

State Of The Art Technology
We use advanced technology and equipment to ensure precise and reliable results. Our cutting-edge tools and methodologies guarantee the highest standards of lab testing.

Highly Skilled Team
Our team consists of skilled technicians trained to handle complex hormonal tests with high accuracy. Each member has years of experience & specialized knowledge to every test.

Fast Turnaround Time
Get your results quickly, helping to make timely decisions regarding your health. We understand the importance of prompt information for effective health management.

Patient-Centered Care
Genex Lab prioritizes your comfort and satisfaction throughout the testing process. Our compassionate approach ensures a supportive and reassuring experience for patients.