Bilirubin, Indirect Test: Booking, Price, and Results
About Bilirubin, Indirect Test
| Field | Value |
|---|---|
| Also Known As | Unconjugated Bilirubin Test, Indirect Serum Bilirubin, Indirect Bilirubin Blood Test |
| Sample Type | Serum |
| Fasting Required | Generally not required; some labs recommend fasting for 4 hours before the test |
| Report Time | 1 Day |
| Recommended For | All ages and genders, especially those with liver disorders |
| Price | Starting at ₹170 |
What Is a Bilirubin, Indirect Test?
The bilirubin indirect test measures the level of unconjugated bilirubin in your blood. Bilirubin is a yellow pigment produced when the body breaks down old red blood cells. The indirect form is bilirubin that has not yet been processed by the liver. Doctors order this test to investigate symptoms such as jaundice or to assess conditions affecting red blood cells and liver function. It is also called the indirect serum bilirubin or unconjugated bilirubin test.
What Does a Bilirubin, Indirect Test Measure?
The bilirubin indirect test analyses the unconjugated fraction of bilirubin in your blood. The test does not measure a separate substance directly. Instead, it is calculated by subtracting direct (conjugated) bilirubin from total bilirubin.
| Parameter | What It Tells You |
|---|---|
| Indirect (Unconjugated) Bilirubin | Bilirubin still bound to albumin, travelling to the liver for processing |
| Direct (Conjugated) Bilirubin | Bilirubin already processed by the liver and made water-soluble |
| Total Bilirubin | The combined amount of all bilirubin in your blood |
Why Is a Bilirubin, Indirect Test Done?
A doctor may order this test for several reasons, from investigating visible symptoms to monitoring known conditions linked to abnormal bilirubin levels.
Common Symptoms That May Require This Test
The following symptoms commonly lead a doctor to request a bilirubin indirect test:
- Yellowing of the skin or whites of the eyes (jaundice)
- Dark or tea-coloured urine
- Pale or clay-coloured stools
- Unexplained fatigue or weakness
- Stomach pain or discomfort
- Shortness of breath
Conditions This Test Can Help Detect
This test can help identify a range of conditions related to red blood cell breakdown and liver function:
- Haemolytic anaemia (a condition where red blood cells are destroyed faster than the body can replace them)
- Gilbert syndrome, Crigler-Najjar syndrome (inherited conditions that affect bilirubin processing)
- Sickle cell disease, thalassaemia, and glucose-6-phosphate dehydrogenase (G6PD) deficiency
- Liver disorders
- Reactions to blood transfusions
- Neonatal jaundice (elevated unconjugated bilirubin in newborns)
Bilirubin, Indirect Test for Chronic Disease Monitoring
For people living with conditions such as sickle cell disease or other forms of haemolytic anaemia, this test may be repeated regularly. It helps track how well the body is responding to treatment and whether the condition is stable or changing over time.
How to Prepare and What to Expect
Preparation for this test is straightforward, and the sample collection process is quick and simple.
Do You Need to Fast?
Fasting is generally not required for the bilirubin indirect test, but some doctors may recommend fasting for 4–12 hours before sample collection. This helps improve test accuracy, as food intake can sometimes slightly affect bilirubin levels. Confirm the specific requirement with your doctor or the collection centre before your appointment.
Practical Tips Before Your Test
Keep the following in mind ahead of your sample collection:
- Bring a detailed clinical history, including your symptoms, previous test results, and any relevant medical records, as this is required for the test.
- Tell your doctor about all prescription medicines, over-the-counter drugs, and supplements you take, as some can affect results.
- Avoid alcohol for at least one day before your test.
- Do not undertake vigorous exercise before the test, as strenuous activity can temporarily affect bilirubin levels.
- Avoid prolonged fasting, as this can also cause a temporary rise in bilirubin in some individuals.
- Stay well-hydrated before your appointment.
Step-by-Step Procedure
Here is what to expect during the bilirubin indirect test procedure:
- A trained phlebotomist will clean the skin over a vein in your arm using an antiseptic wipe.
- A fine needle is inserted into the vein, and a small blood sample (approximately 3 ml) is drawn into a collection tube. The procedure usually takes no more than five minutes.
- Once the sample is collected, a small bandage is applied to the puncture site.
- The sample is stored under refrigeration and protected from light, as light exposure can degrade bilirubin.
- In the laboratory, total bilirubin and direct bilirubin are measured separately. Indirect bilirubin is then calculated as the difference between the two values.
- Your report is typically ready within one day.
Factors That Can Affect Accuracy
The following factors may influence the accuracy of your results:
- Haemolysed samples can interfere with bilirubin measurement and may lead to inaccurate results, so they are often rejected.
- Certain medications, including propranolol, antibiotics, and oral contraceptives, may interfere with the test results.
- Prolonged fasting, strenuous exercise, dehydration, and stress can temporarily raise bilirubin levels.
- Pregnancy may cause mild changes in bilirubin levels due to hormonal and metabolic changes.
Understanding Your Bilirubin, Indirect Test Results
Your results should always be reviewed alongside your clinical history by a qualified doctor. The table below shows general reference range.
| Parameter | Normal Range | Unit |
|---|---|---|
| Indirect (Unconjugated) Bilirubin | 0.2 to 0.8 | mg/dL |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain conditions can influence how results are interpreted:
- In people with Gilbert syndrome, triggers such as fasting, illness, dehydration, stress and menstruation may cause a temporary rise in indirect bilirubin.
- In haemolytic conditions, indirect bilirubin is typically elevated due to increased red blood cell breakdown, and higher levels may reflect more severe haemolysis. Further evaluation may be needed to rule out underlying liver disease or bile duct obstruction.
- Elevated unconjugated bilirubin in newborns can result from prematurity, blood group incompatibility between mother and baby, or breast milk jaundice, where factors in breast milk reduce bilirubin clearance.
How to Maintain Healthy Levels
These general wellness tips may help support normal bilirubin levels:
- Limit or avoid alcohol, and be cautious with over-the-counter medications that may stress the liver.
- Eat regular, balanced meals and avoid prolonged gaps between meals, particularly if you have Gilbert syndrome.
- Stay well-hydrated throughout the day to support healthy liver and kidney function.
Lupin Diagnostics Bilirubin, Indirect Test Price and Home Collection
The bilirubin indirect test cost at Lupin Diagnostics starts at ₹170, and home collection is available across major cities in India. The table below lists approximate prices by city.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 140 |
| CHENNAI | 170 |
| HYDERABAD | 150 |
| KOLKATA | 150 |
| NAVI MUMBAI | 170 |
| PUNE | 150 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Follow these steps to book your bilirubin indirect test online:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Bilirubin indirect test home collection is available across cities through Lupin Diagnostics. A certified phlebotomist visits your home at your chosen time to collect the sample. All samples are processed in NABL-accredited laboratories, and your report is delivered digitally for easy access.
Frequently Asked Questions
Direct bilirubin (also called conjugated bilirubin) is the form that the liver has processed and made water-soluble. Indirect bilirubin is the unprocessed form, still bound to a blood protein. Separating these two values helps doctors pinpoint whether a problem originates in the blood or the liver.
When red blood cells break down too rapidly (haemolysis), indirect bilirubin increases while direct bilirubin often remains within the normal range. This pattern usually suggests increased red cell breakdown or reduced bilirubin processing rather than a liver or bile duct disorder. Your doctor will guide further evaluation and next steps.
Fasting is generally not mandatory. Some labs suggest avoiding food for around four hours beforehand, but this varies. Your doctor will advise you based on your specific situation and whether other tests are being done at the same time.
Yes. Gilbert syndrome is a common, harmless inherited condition that causes mild, intermittent rises in indirect bilirubin. Episodes can be triggered by fasting, illness, dehydration, menstruation, or intense physical exertion. The condition does not affect long-term health.
Laboratories measure total bilirubin and direct bilirubin separately. Indirect bilirubin is then calculated by subtracting the direct bilirubin value from the total bilirubin value. This is why the bilirubin indirect test is listed as a "calculated" method.
Low indirect bilirubin levels are generally not a medical concern. Certain medications, including antibiotics, hormonal contraceptives, and some seizure medicines, can lower bilirubin levels. Your doctor will assess whether any action is needed based on your specific condition.
Yes. The test is commonly used to check for neonatal jaundice in newborns. A small blood sample is taken, and the results help doctors assess whether bilirubin levels are within an acceptable range for the baby's age and health condition.
Bilirubin, Indirect Test: Booking, Price, and Results
