I Have A Swab Test In A Week. I Smoked

I have a swab test in a week. I smoked meth once did cocaine once and I take klodipins not prescribed. I never really do drugs I just tried them first time. My phychiatrist wants to do a swab text to see what good medications are good for me cause I'm schizo affective. Will they see what I have tried four days ago. They said I can come in at anytime this month.