No, the only metabolites that are detectable for up to a year is 19-nortestosterone (nandrolone) or anything that converts to it and those precursers haven't been widely available for years now. Most of the PH/PS stuff on the market now generally have a max half-life of 8 hours of so, meaning that it should completely clear your system in a day or so. Why the hell would your gym give you a blood test and why the hell would you be worried about it??