In 2002 Or 2003 I Was On INH For 9

In 2002 or 2003 I was on INH for 9 months for positive PPD's. The chest x-raw did not show anything and my job said i had to be treated for TB or i had to leave my job. I took a QuantiFERON®-TB Gold blood test the other day and my GI doc told me not to worry about the results because i should be full of antibodies.

I'm trying to get on Humira to control my crohn's and was wondering if there was a better TB test that should be used for me?