jaundice Flashcards

1
Q

jaundice is caused by

A

raised bilirubin

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2
Q

bilirubin is derived from

A

breakdown of haemoglobin in the spleen

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3
Q

how is bilirubin transported

A

bound to albumin

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4
Q

where is bilirubin conjugated

A

liver

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5
Q

what is the bilirubin conjugated to

A

bilirubin glucuronide

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6
Q

how does bilirubin leave the liver

A

excreted via the bile duct into the small intestine in bile

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7
Q

what happens to conjugated bilirubin in the terminal ileum

A

converted to urobilinogen and excreted in the faeces or absorbed by kidenys and excreted

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8
Q

what is urobiligen excreted in the stool as

A

stercobilinogen

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9
Q

where does bilirubin become urobiligen

A

terminal ileum

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10
Q

three categories of jaundice

A

Haemolytic jaundice
Congenital hyperbilirubinaemias
Cholestatic jaundice

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11
Q

Cholestatic jaundice

A

failure of bile secretion by the liver or bile duct obstruction

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12
Q

Haemolytic jaundice principal

A

Increased breakdown of red blood cells leads to increased production of bilirubin

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13
Q

what is raised in haemolytic jaundice

A

raised serum unconjugated bilirubin

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14
Q

most common congenital hyperbilirubinaemia

A

gilberts

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15
Q

what does bilirubinget conjugated to

A

glucuronic acid

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16
Q

what is the issue in gilberts

A

reduced enzyme for bilirubin conjugation

17
Q

gilberts treatment

A

not needed

18
Q

cholestatic jaundice ca be divided into

A

intrahepatic

extraheptaic