Undersøgelser af plasma eller serum skal omfatte natrium, kalium, glukose, total kolesterol, urinstof, kreatinin, total protein og albumin, mindst to enzymer, hvis forekomst kan være tegn på hepatocellulære effekter (f.eks. alanin aminotransferase, aspartat aminotransferase, alkalisk phosphatase, gamma glutamyl transpeptidase og sorbitol dehydrogenase).
Investigations of plasma or serum shall include sodium, potassium, glucose, total cholesterol, urea, creatinine, total protein and albumin, at least two enzymes indicative of hepatocellular effects (such as alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, gamma glutamyl transpeptidase, and sorbitol dehydrogenase).