Gastrointestinal function reference ranges (Medscape)

Question 1

Albumin

Answer 1

35 - 50 g/L

Question 2

Alkaline phosphatase

Answer 2

50 - 100 U/L

Question 3

Alkaline aminotransferase (ALT)

Answer 3

5 - 30 U/L

Question 4

Amylase

Answer 4

30 - 125 U/L

Question 5

Aspartate aminotransferase (AST)

Answer 5

5 - 30 U/L

Question 6

Gamma glutamyl transferase

Answer 6

6 - 50 U/L

Question 7

Lipase

Answer 7

10 - 150 U/L

Question 8

Total bilirubin

Answer 8

2 - 20 µmol/L

Question 9

Total protein

Answer 9

60 - 80 g/L