Positive AMA

Hello.  I was diagnosed with Sarcoidosis in 2008 which was confirmed by biopsy.  Since then I have tested positive for RA and my ANA has been as high as 1:5000 currently it is 1350 and always a speckled pattern.  When I was diagnosed with the Sarc I was prescribed Azathioprine which I found out over the three years I took it has damaged my pancreas and I am left with debilitating chronic pancreatitis.  My liver enzymes over the years have been elevated off and on but no jaundice just fatty liver.  Because my ANA is so high and I tested positive for the RA they went ahead and tested me for lupus.  The lupus came back negative but I did test positive for the AntiSmooth Muscle Antibodys which I guess means auto immune hepatitis.  My question is:  Is there anyway you can have a false positive?  I take the following meds.

*Lamictal
*Welbutrin
*Zocor
*Protonix
*Vicodin
*Levsin
*Benedryl
*Seroquel

Like I said I've had liver stuff off and on but I'm just not sure.  Thanks for all your help.

Tags: autoimmune, Liver, Liver Enzymes, Sarcoidosis