This is a blood test that measures the amount of a substance called bilirubin. This test is used to find out how well your liver is working. It is often part of a panel of tests that measure liver function. A small amount of bilirubin in your blood is normal, but a high level may be a sign of liver disease. Total bilirubin ("TBIL") measures both BU (“unconjugated or Indirect bilirubin’), and BC (“Conjugated” or Direct bilirubin”) Total and direct bilirubin levels can be measured from the blood, but indirect bilirubin is calculated from the total and direct bilirubin. Only a small amount of bilirubin is present in the blood.
A bilirubin blood test measures the levels of bilirubin in your blood. Bilirubin is a yellowish substance made during the body's normal process of breaking down red blood cells.
Bilirubin is found in bile, a fluid in your liver that helps you digest food. If your liver is healthy, it will remove most of the bilirubin from your body. If your liver is damaged, bilirubin can leak out how to make moroccan soup harira your liver and into your blood.
When too much bilirubin gets into the bloodstream, it can cause jaundicea what is hdcp ready video card that causes your skin and eyes to turn yellow. Signs of jaundice, along with a bilirubin blood test, can help your health care provider find out if you have liver disease.
A bilirubin blood test is used to check the health of your liver. The test is also commonly used to help diagnose newborn jaundice. Many healthy babies get jaundice because their livers aren't mature enough to get rid of enough bilirubin. Newborn jaundice is usually harmless and clears up within a few weeks.
But in some cases, high bilirubin levels can lead to brain damage, so infants are often tested as a precaution. A health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial. You may feel a little sting when the needle goes in or out. This usually takes less than five minutes. You don't need any special preparations for a bilirubin blood test.
If your health care provider has also ordered other blood tests, you may need to fast not eat or drink for several hours before the test. Your health care provider will let you know if there are any special instructions to follow.
There is very little risk to having a blood test. You may have slight pain or bruising at the spot where the needle was put in, but most how to convert to zulu time go away quickly.
Normal results can vary, but high bilirubin levels can mean your liver isn't working right. However, abnormal results don't always indicate a medical condition needing treatment. Higher than normal bilirubin levels can also be caused by medications, certain foods, or strenuous exercise. To learn what your results mean, talk to your health care provider.
Learn more about laboratory tests, reference ranges, and understanding results. A bilirubin blood test is only one measure of your liver health. If your health care provider thinks you might have a liver disease or a red blood cell disorder, other tests may be recommended.
These include liver function how to make mini fireworks, a group of tests that measure different substances in your blood, and tests for certain proteins made in the liver.
In addition, your health care provider may recommend urine tests, an ultrasound, or a biopsy to get a sample of tissue from your liver to examine. The medical information provided is for informational purposes only, and is not to be used as a substitute for professional medical advice, diagnosis or treatment.
Please contact your health care provider with questions you may have regarding medical conditions or the interpretation of test results. Bilirubin Blood Test. What is a bilirubin blood test? Other names: Total serum bilirubin, TSB. What is it used for? Why do I need a bilirubin blood test? Your health care provider may order a bilirubin blood test: If you have symptoms such as jaundice, dark urine, or stomach pain.
These could indicate hepatitiscirrhosisor other liver diseases To find out if there is a blockage in the structures that carry bile from your liver To monitor an existing liver disease or disorder To diagnose disorders related to problems with red blood cell production.
High bilirubin levels in the bloodstream may be a sign of gallbladder disease and a condition called hemolytic anemia. What happens during a bilirubin blood test? Will I need to do anything to prepare for the test? Are there any risks to the test? What do the results mean? Is there anything else I need to know about a bilirubin blood test?
References American Liver Foundation. New York: American Liver Foundation; c Liver Function Tests; [updated Jan 25; cited Jan 31]; [about 4 screens].
Washington D. Bilirubin; [updated Dec 16; cited Jan 31]; [about 3 screens]. Mayo Foundation for Medical Education and Research; c Bilirubin test: Definition; Jul 2 [cited Jan 31]; [about 2 screens]. Bilirubin test: Results; Jul 2 [cited Jan 31]; [about 6 screens]. Bilirubin test: Why it's done; Oct 13 [cited Jan 31]; [about 4 screens].
Bethesda MD : U. In the event of a medical emergency, call immediately.
Bilirubin - Total (TBIL)
Bilirubin is a yellowish substance in your blood. It forms after red blood cells break down, and it travels through your liver, gallbladder, and digestive tract before being excreted. Typically. The Bili total blood test is a measurement of a person’s bilirubin levels. In adults and children that have reached adolescent age, this test is used to either diagnose or monitor certain liver diseases or to detect the presence of gallstones. Jul 12, · The bilirubin test measures the total bilirubin level (unconjugated and conjugated bilirubin) spectrophotometrically. A subset of this test is designed to measure or estimate the two major forms of bilirubin, unconjugated and conjugated bilirubin. Although blood is usually tested, amniotic fluid and urine also can be examined.
A bilirubin test measures the levels of bilirubin in your blood. Bilirubin bil-ih-ROO-bin is a yellowish pigment that is made during the normal breakdown of red blood cells.
Bilirubin passes through the liver and is eventually excreted out of the body. Higher than normal levels of bilirubin may indicate different types of liver or bile duct problems. Occasionally, higher bilirubin levels may be caused by an increased rate of destruction of red blood cells hemolysis. Bilirubin testing is usually done as part of a group of tests to check the health of your liver. Bilirubin testing may be done to:.
Bilirubin testing is done using a blood sample. Usually, the blood is drawn through a small needle inserted into a vein in the bend of your arm. A small tube is attached to the needle to collect the blood. You may feel a quick pain as the needle is inserted into your arm and experience some short-term discomfort at the site after the needle is removed.
Blood for bilirubin testing in newborns is usually obtained using a sharp lancet to break the skin of the heel heel stick. There may be slight bruising at the puncture site afterward. Your blood will be sent to a laboratory for analysis. You can usually return to normal activities immediately. Bilirubin test results are expressed as direct, indirect or total bilirubin.
Total bilirubin is a combination of direct and indirect bilirubin. Typically, you'll get results for direct and total bilirubin.
Normal results for a total bilirubin test are 1. Normal results for direct bilirubin are generally 0. These results may vary slightly from laboratory to laboratory. Normal results may be slightly different for women and children, and results may be affected by certain foods, medications or strenuous exercise.
Be sure to tell your doctor about any foods or medications you've taken and your activity levels so that your results can be interpreted correctly. Lower than normal bilirubin levels are usually not a concern. Elevated levels may indicate liver damage or disease. Higher than normal levels of direct bilirubin in your blood may indicate your liver isn't clearing bilirubin properly.
Elevated levels of indirect bilirubin may indicate other problems. One common, and harmless, cause of elevated bilirubin is Gilbert's syndrome, a deficiency in an enzyme that helps break down bilirubin. Your doctor may order further tests to investigate your condition. Bilirubin test results also may be used to monitor the progression of certain conditions, such as jaundice. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Don't delay your care at Mayo Clinic Schedule your appointment now for safe in-person care.
This content does not have an English version. This content does not have an Arabic version. Sections for Bilirubin test About. Request an appointment. Overview A bilirubin test measures the levels of bilirubin in your blood. More Information Gilbert's syndrome. Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Show references Lab Tests Online. Accessed Oct. Mayo Medical Laboratories. Bilirubin, serum. Friedman LS.
Clinical aspects of serum bilirubin determination. Lab Tests Online. Liver panel. Wilkinson JM expert opinion. Mayo Clinic. Related Gilbert's syndrome. Bilirubin test About. Mayo Clinic Marketplace Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.