Hello,
I joined a research lab last July and I have about 50 hours there so far. I have also had the opportunity to design my own project and I was awarded a fellowship from it and presented a poster based on this. I may be getting a publication. This upcoming semester, I am taking an EMT course which I believe will be very time consuming. I am also taking Organic Chemistry 2 and Genetics. My question is, based on my research experience so far, would it be reasonable to ask for a one semester break from my lab? I would eventually like to get a Letter of Recommendation from my lab PI so I don't want to burn any bridges. I feel like doing the EMT course along with volunteering with my EMT squad and managing my classes is already a lot.