Liver

Question 1

What vessel is responsible for 25% of hepatic blood flow?

Answer 1

Hepatic Artery

Question 2

What vessel is responsible for 75% of hepatic arterial flow?

Answer 2

Portal Vein

Question 3

What modulates the hepatic arterial buffer response?

Answer 3

Adenosine—> but portal venous flow has a major impact on the relative washout of Adenosine

Question 4

Effect of vasopressin on portal venous vascular resistance?

Answer 4

Decreases vascular resistance

Question 5

Effect of glucagon on hepatic artery?

Answer 5

Vasodilation

Question 6

Effect of glucagon on serum calcium?

Answer 6

Hypocalcemia

Question 7

Components of Child-Pugh Score?

Answer 7

1) Albumin
2) Degree of encephalopathy
3) PT
4) Bilirubin
5) Ascites
6) INR

Question 8

What are the components of MELD Score?

Answer 8

1) INR
2) Cfeatinine
3) Bilirubin
4) Serum Sodium
5) Dialysis

Question 9

Why is thrombocytopenia a common finding in cirrhosis?

Answer 9

1) Decreased thrombopoetin

2) Hypersplenism

Question 10

What lab value is the best indicator of graft function in liver transplant?

Answer 10

INR

Question 11

After how many days does INR peak following hepatectomy?

Answer 11

1-3 days

Question 12

After how many days post-hepatectomy does INR normalize?

Answer 12

5-7 days