What is a Bilirubin Blood Test?
A bilirubin blood test is a measure of the amount of bilirubin in the blood. Bilirubin is a breakdown product of hemoglobin, the protein found in red blood cells that carries oxygen to your body's tissues. A bilirubin test may be ordered when your doctor suspects that you may have liver disease, hemolytic anemia or bile duct obstruction.
Preparation for Bilirubin Test
No special preparation is necessary for this type of test.
Follow the instructions your doctor or lab gives you.
Procedure for Bilirubin Test
A blood sample will be taken from a vein on the inside of the elbow or the back of your hand.
The area will be cleansed with an antiseptic and an elastic band will be put around the upper arm to help the vein become more prominent.
A needle will be inserted into the vein and a small amount of blood will be taken and collected into a tube.
After the procedure, pressure will be applied to the blood collection site.
The sample will be sent for analysis.
Types of Bilirubin Tests
Total Bilirubin Test: This test measures the amount of total bilirubin in your blood.
Direct Bilirubin Test: This test measures the amount of direct bilirubin in your blood.
Indirect Bilirubin Test: This test measures the amount of indirect bilirubin in your blood.
Risks of Bilirubin Tests
Bleeding: You may experience bleeding or bruising at the puncture site.
Infection: You may experience infection at the puncture site.
Why a Bilirubin Test is Performed?
A bilirubin test may be done to check for liver diseases, such as Cirrhosis, Hepatitis, or Gallstone Obstruction. It may also be ordered to evaluate a newborn for jaundice, a condition in which the skin and whites of the eyes have a yellowish hue.
When a Bilirubin Test is Ordered?
When your doctor suspects that you have liver disease, hemolytic anemia, bile duct obstruction, or jaundice.
When you have symptoms such as pain in the abdomen or yellowing of the skin or eyes.
When you're having a biochemistry profile to investigate any underlying liver disorder.