Bilirubin Test A bilirubin test measures bilirubin levels in your blood. Bilirubin is the yellow pigment in bile. You might have high bilirubin levels if your liver is having trouble processing bilirubin into bile, or …

Dec 17, 2024 · Bilirubin is a yellowish substance in your blood. It forms after red blood cells break down and travel through your liver, gallbladder, and digestive tract before excretion. The condition of...

Nov 9, 2024 · Bilirubin is a substance produced by the breakdown of red blood cells. Bilirubin (bil-ih-ROO-bin) passes through the liver and is eventually excreted out of the body. Higher than usual …

Jul 11, 2025 · Bilirubin is an orange-yellow pigment that occurs normally when part of your red blood cells break down. Your liver takes the bilirubin from your blood and changes its chemical makeup so …

Bilirubin consists of an open-chain tetrapyrrole. It is formed by oxidative cleavage of a porphyrin in heme, which affords biliverdin. Biliverdin is reduced to bilirubin. After conjugation with glucuronic …

Dec 2, 2025 · High bilirubin levels (hyperbilirubinemia) may be caused by blood, liver, or bile duct disorders and can manifest with jaundice. Learn more.

The meaning of BILIRUBIN is a reddish-yellow water-insoluble pigment C33H36N4O6 that is formed by the breakdown of heme, is excreted in a water-soluble form by liver cells into bile, and occurs in …

a yellow to orange bile pigment produced by the breakdown of heme and reduction of biliverdin; it normally circulates in plasma and is taken up by liver cells and conjugated to form bilirubin …

Sep 9, 2024 · Bilirubin is an orange-yellow bile pigment formed during the normal breakdown of the red blood cells. Learn about the elevated bilirubin level and its problems.

bilirubin (BIH-lih-ROO-bin) Substance formed when red blood cells are broken down. Bilirubin is part of the bile, which is made in the liver and is stored in the gallbladder. The abnormal buildup of bilirubin …