Actually I'm new here and I don't really understand the what the title is about, hence I decided to type anything and 'Emergency' came in mind. Back to my question.... I know some people react to ATS. Hence, its advisable to always give a test dose before administering the full dose. I want to know if the test dose is drawn from the given dose to be administered. And also, if the test dose is diluted with sodium chloride. If yes, how is it done? I don't mean how ATS is manufactured. I hope my question is clear now. And thanks for the attempt to help me.