Liver Function Tests

Question 1

What is the immediate precursor of bilirubin formation?

Answer 1

Biliverdin

Question 2

In the Evelyn - Malloy method, bilirubin is:

Answer 2

Azobilirubin is the pink or purple compound formed

Question 3

The total bilirubin component of serum consists of direct and indirect bilirubin. What is the best description for direct bilirubin?

Answer 3

Water soluble

Question 4

If the total bilirubin is 4.3 mg/dL and conjugated bilirubin is 2.1 mg/dl, what is the unconjugated bilirubin?

Answer 4

2.2 mg/dL

Question 5

Coupling promoters that maybe used for bilirubin determination

Answer 5

Methyl alcohol and caffeine sodium

Question 6

Dubbin-Johnson syndrome is characterized by?

Answer 6

Inability to excrete conjugated bilirubin

Question 7

The complex that is formed after bilirubin couples with diazotized sulfanilic acid is:

Answer 7

Azobilirubin

Question 8

It is considered as obstructive bilirubin if:

Answer 8

There is obstruction of the biliary ract

Question 9

disease states is conjugated bilirubin a major serum component?

Answer 9

Biliary obstruction

Question 10

Kernicterus is the abnormal accumulation of bilirubin in which tissue?

Answer 10

Brain tissue

Question 11

When the RBS outlives its 120 lifespan, it disintegrates, hemoglobin is released and converted to bile pigments primarily by the?

Answer 11

Spleen

Question 12

Which of the following is the correct SI unit and conversion factor for bilirubin ?

Answer 12

Mol/L = 17.1

Question 13

One of the following is not a cause of unconjugated hyperbilirubinemia.

Answer 13

Constricted bile ducts

Question 14

If the cause of the unconjugated hyperbilirubinemia is the absence of the enzyme conjugating system, UDPGT, the condition is known as:

Answer 14

Criglerr-Najjaf syndrome

Question 15

The greatest activities of serum AST and ALT are seen in which condition

Answer 15

Acute hepatitis