Dead hepatocytes release direct bilirubin in circulation
The letters used to represent bilirubin count on a blood test are usually "T Bili" for total bilirubin and "D Bili" for direct bilirubin. Total bilirubin includes both direct and indirect bilirubin, while direct bilirubin specifically measures the amount that is conjugated and ready to be cleared by the liver.
The presence of bilirubin can be confirmed through blood tests such as a total bilirubin test or a direct bilirubin test. These tests measure levels of bilirubin in the blood to assess liver function and diagnose conditions such as jaundice or liver disease.
Indirect bilirubin is a type of bilirubin that is unconjugated, meaning it is not bound to other compounds in the liver. It is produced when red blood cells break down and is then processed by the liver to be converted into direct bilirubin for excretion. High levels of indirect bilirubin in the blood may indicate liver or gallbladder issues.
Bilirubinemia is the medical term meaning bilirubin in the blood. Hyperbilirubinemia is the medical term meaning excess levels of bilirubin in the blood.
Total bilirubin is a measure of the bilirubin levels in the blood, which is a yellow compound produced during the breakdown of red blood cells. It consists of two fractions: unconjugated (indirect) bilirubin, which is not water-soluble and is processed by the liver, and conjugated (direct) bilirubin, which is water-soluble and excreted in bile. Elevated levels of total bilirubin can indicate liver dysfunction, bile duct obstruction, or hemolysis. Testing total bilirubin is often part of a liver function panel to assess liver health.
Bilirubin is produced by the breakdown of old red blood cells in the liver. It is conjugated with glucuronic acid to make it water-soluble so that it can be excreted in bile. Bilirubin is then eliminated from the body in the feces.
A bilirubin specimen is collected through a simple blood test usually performed by using a needle to draw blood from a vein in your arm. The sample is then sent to a laboratory for analysis to measure the levels of bilirubin in the blood.
From the glossary of medical terms the answer is: BILIRUBIN
The blood chemical constituant that is light sensitive is Bilirubin..
When the erythrocytes are destroyed, haemoglobin breaks down, the heme part of it goes through a series of transformation: Heme → biliverdin (green pigment) biliverdin → bilirubin (orange-yellow pigment) Bilirubin + blood albumin → bound bilirubin (in peripheral blood) Bound bilirubin + glucuronic acid → conjugated bilirubin. (in liver) Conjugated bilirubin + intestinal bacteria → several pigments, including - stercobolin (orange-brown pigment, excreted in feces) and - urobilinogen (reabsorbed into bile/blood, finally excreted in urine)
TBIL stands for total bilirubin, which is a measure of the amount of bilirubin in the blood. Bilirubin is a yellowish substance that forms when red blood cells break down, and high levels can indicate liver or bile duct issues.
The destruction of red blood cells results in the waste product called bilirubin. Bilirubin is a yellow compound that is produced when hemoglobin from old red blood cells is broken down in the liver.