<<Disclaimer: Verify this information before applying it to your situation.>> Hi everyone, I would like to request that my doctor order the HLA marker blood test for my 16 year old as he has an appointment on Monday. I need to know the actual name for the test to be ordered and where the test can be done. I would appreciate any help anyone can give as I'm trying to get all the tests done at once. Thanks, Barb from NE Ohio