Liver function tests(SGPT/SGOT/gGT) will be what they test for. Lifting regularly will raise SGPT/SGOT even without AAS as will intramuscular injections. GammaGT is more liver specific for detecting inflammation independent of muscle.
If you don't have "baseline acne" and it's all AAS induced a lower dose of Accutane will usually take care of it with less chance for sides. (10 to 20 mg per day for AAS induced acne)
I'm sure you,ve probably read the reports associating this drug with increased depression/suicide rates. There seems to be a direct correlation and I'd make others around you aware of the drugs potential so they can help you monitor your mood better,especially with the AAS on board.
Properly monitored ,it's a great drug,just be careful bro.