Question

Bilirubin level helps in measuring the function of _______

• A. Liver
• B. Heart
• C. Kidney
• D. Lung

Hint:

Bilirubin is an important liver function marker; increased bilirubin may indicate jaundice or liver/bile duct problems.

Answer 1

The Correct Option is A

Concept:
Bilirubin is a yellow pigment formed from the breakdown of haemoglobin. It is processed and excreted mainly through the liver.

Step 1: Formation of bilirubin.
When old red blood cells are destroyed, haemoglobin is broken down and bilirubin is formed.

Step 2: Role of liver.
The liver takes up bilirubin, conjugates it, and excretes it through bile.

Step 3: Clinical importance.
If liver function is impaired, bilirubin may accumulate in the blood. This can cause jaundice.

Step 4: Checking other organs.
Heart function is usually assessed by cardiac markers and ECG.
Kidney function is commonly assessed by urea and creatinine.
Lung function is assessed by respiratory tests.
Bilirubin is mainly used to assess liver and biliary function.

Step 5: Final answer.
Therefore, bilirubin level helps in measuring liver function. \[ \boxed{\text{Liver}} \]