My sons 1st fecal elastase was 160, 8 weeks later it was 360. The doctor said that 360 is completely normal but I have read on here that it is not normal. They were almost ready to take him off the enzymes when the 2nd test came back. The only reason they didnt is because he still has very watery, very stinky stools. Since he started on the enzymes he is eating less frequently, hes less gassy and less fussy. Does anyone know if being on prevacid will affect these test results. And what are the facal elastase numbers?? He ordered a 3rd fecal elastase today. This is so frustrating!!!!