Bile Pigment (BP), Urine Test
About Bile Pigment (BP), Urine Test
| Field | Value |
|---|---|
| Also Known As | Bilirubin Urine Test, Bilirubinuria Test |
| Sample Type | Urine (midstream preferred) |
| Fasting Required | Not required |
| Report Time | 1 day |
| Recommended For | All ages and genders |
| Price | Starting at ₹100 |
What is a Bile Pigment (BP), Urine Test?
The bile pigment (BP), urine test checks for the presence of bilirubin in a urine sample. Bilirubin is a yellow pigment produced when red blood cells break down. In a healthy person, it is processed by the liver and excreted through bile, not through urine. Finding bilirubin in urine is therefore considered abnormal and may point to a liver or bile duct problem. This test is also called the bilirubin urine test or bilirubinuria test. It is a simple, non-invasive screening tool that a doctor may order when symptoms suggest a liver-related issue.
What Does a Bile Pigment (BP), Urine Test Measure?
The bile pigment (BP), urine test measures a single substance in your urine. The table below explains what is being assessed:
| Parameter | What It Is | Why It Matters |
|---|---|---|
| Bile Pigment (Bilirubin) | A yellow pigment released during red blood cell breakdown | Bilirubin is normally absent from urine; its presence suggests liver or bile duct dysfunction |
The test uses the dipstick method, where a chemically treated strip is dipped into the urine sample and read for a colour change indicating the presence or absence of bilirubin.
Why is a Bile Pigment (BP), Urine Test Done?
A doctor may request this test for several reasons. It is most often used to investigate symptoms that suggest the liver or bile ducts are not working normally.
Common Symptoms That May Require This Test
The following symptoms are among the reasons a doctor may order this test:
- Dark-coloured urine (tea or cola-coloured)
- Yellowing of the skin and eyes (jaundice)
- Pale or clay-coloured stools
- Abdominal pain, especially in the upper right area
- Unexplained fatigue
- Nausea
Conditions This Test Can Help Detect
This test can help identify a range of liver and bile duct conditions. These include:
- Liver diseases such as hepatitis or cirrhosis
- Blockage of the bile ducts (the small tubes that carry bile from the liver)
- Gallstones causing bile duct obstruction
- Haemolytic anaemia, where red blood cells are destroyed faster than they are produced
- Gallbladder diseases causing impaired bile flow
How to Prepare and What to Expect
No special preparation is needed for the bile pigment (BP), urine test. Here is what you need to know before your appointment.
Do You Need to Fast?
No fasting is required before this test. You can have it done at any convenient time of day. If other tests have been ordered alongside this one, check with your doctor whether any of those require fasting.
Practical Tips Before Your Test
Here are a few simple things to keep in mind before your bile pigment (BP), urine test:
- Bring a detailed clinical history, including your symptoms, any previous test results, and your family history, as this is required for the test.
- Inform the collection professional about all medicines and supplements you are currently taking, as some can affect results.
- Women are advised not to provide the sample during their menstrual period unless specifically instructed by their doctor.
- Deliver the sample promptly after collection, as bilirubin in urine degrades quickly when exposed to light.
Step-by-Step Procedure
- Wash your hands thoroughly and clean the area around the urethral opening before starting.
- Begin urinating, let the first few seconds of the stream pass, then hold the sterile container provided under the stream to collect the midstream sample.
- Avoid letting the container touch your skin to prevent contamination.
- Seal the container securely and label it with your name, date, and time of collection.
- Hand the sample over to the collection professional without delay. Refrigeration between collection and testing helps preserve sample quality.
- The sample is transported to an NABL-accredited Lupin Diagnostics laboratory, where it is analysed using the dipstick method.
Factors That Can Affect Accuracy
Certain factors can influence the reliability of the result. These include:
- Delay between collection and testing, as bilirubin breaks down quickly when exposed to light
- Certain medications, including phenazopyridine, chlorpromazine, and etodolac, which can produce false-positive results
- Prolonged bile duct blockage, which can occasionally produce a false-negative result despite high bilirubin levels in the blood
- Urine contamination due to improper collection technique
Understanding Your Bile Pigment (BP), Urine Test Results
Your result will be reported as either negative (not detected) or positive (detected). The table below shows the reference range for this test:
| Parameter | Negative (Normal Result) | Positive (Abnormal Result) |
|---|---|---|
| Bile Pigment (Bilirubin) | No bilirubin detected in urine, which is the expected finding in a healthy individual. | Bilirubin detected in urine; warrants further investigation by a doctor. |
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 situations can affect how results are interpreted:
- Some medications, including phenazopyridine, chlorpromazine, and etodolac, can cause the urine to appear discoloured and may lead to a false-positive reading on the dipstick. Let your doctor know about all medicines you take.
- In some cases of prolonged bile duct blockage, a form of bilirubin that binds to blood proteins (delta bilirubin) does not pass into the urine, which may lead to a false-negative result even when bilirubin levels in the blood are elevated.
- Unconjugated bilirubin, the form seen in conditions such as certain types of haemolysis, does not appear in urine. A negative urine bilirubin result therefore does not completely rule out all forms of elevated bilirubin.
How to Maintain Healthy Levels
Keeping your liver in good health is the best way to prevent bilirubin from appearing in urine. These general wellness tips may help:
- Eat a balanced diet that includes plenty of vegetables, fruits, and whole grains to support liver function.
- Keep alcohol consumption to a minimum, as excess alcohol places significant strain on the liver.
- Tell your doctor about all medicines, herbal remedies, and supplements you take, as some can affect liver health over time.
Lupin Diagnostics Bile Pigment (BP), Urine Test Price and Home Collection
The BP test cost starts at ₹100 and is available at Lupin Diagnostics, with home sample collection offered across cities. The city-wise price breakdown is provided below:
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 100 |
| CHENNAI | 100 |
| HYDERABAD | 100 |
| KOLKATA | 150 |
| NAVI MUMBAI | 100 |
| PUNE | 100 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the bile pigment (BP), urine 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
Lupin Diagnostics offers BP test home collection across multiple cities, making it easy to get tested without visiting a centre. All samples are processed in NABL-accredited laboratories to ensure accurate results. Your digital report is delivered to you within 1 day.
Frequently Asked Questions
The bile pigment (BP), urine test checks for bilirubin in urine to assess how well the liver and bile ducts are functioning. It helps doctors screen for liver conditions, gallbladder problems, and bile duct blockages. It is a simple, non-invasive test that requires only a urine sample.
A positive result means bilirubin has been detected in your urine, which is not normal. This usually points to a problem with the liver, gallbladder, or bile ducts, such as hepatitis, cirrhosis, or a bile duct blockage. Your doctor will likely order follow-up tests to identify the exact cause.
Yes, bilirubin can be detected in urine before the yellow discolouration of the skin and eyes becomes noticeable. This makes the bile pigment (BP), urine test a useful early indicator of liver problems, allowing doctors to investigate sooner.
No. The bile pigment (BP), urine test checks only for bilirubin in urine and is a screening tool. A liver function test (LFT) is a blood test that measures multiple substances produced by the liver and provides a fuller picture of liver health. Both tests may be ordered together.
You collect the urine yourself in a sterile container. The preferred method is the midstream technique: let the initial stream pass, collect the middle portion, and avoid collecting the last part. Do not let the container touch your skin during collection.
Some medicines, including phenazopyridine (commonly taken for urinary discomfort), can discolour the urine and produce a false-positive result on the bile pigment (BP), urine test. Always inform your doctor and the collection professional about any medicines you are taking so that results can be interpreted accurately.
A positive result on its own does not confirm a diagnosis. Your doctor will likely request additional tests, such as a blood bilirubin test or a liver panel, to determine the cause and decide on next steps. Always share your full medical history with your doctor for the most accurate interpretation.
Bile Pigment (BP), Urine Test
