<<Disclaimer: Verify this information before applying it to your situation.>> I am so glad we have this list serve to be able to ask questions. My 11-year daughter went for a biopsy 2 weeks ago. They also did testing on her enzymes. I received a call from the nurse at the office today saying that my daughter has NO amylase enzymes (an amylase deficiency) and we need to come back for some 6-hour hydro?? test. The nurse said this was all new to her and wasn't able to answer any of my questions (I am to call back on Monday). (Her biopsy results are not in yet.) Can anyone give me any information on this amylase deficiency? Thanks! Linda