- Clinically significant laboratory screening test results on hematology, chemistry, or urine analysis; up to four times above the normal range of the following will be allowed unless there is evidence of hepatocellular disease or failure: liver enzymes (SGOT), serum glutamic pyruvic transaminase (SGPT), gamma-glutamyltransferase (GGT), blood urea nitrogen (BUN), lactate dehydrogenase (LDH)