Medical laboratory technology can be upgraded, there are two main forms:
1. After work to participate in the college entrance examination, it is easier to pass, but this qualification is not high.
2. In the school three years with excellent results (note: is the total volume of three years of results, does not include the teacher to give you the usual points), perhaps you will be recommended by the school guaranteed delivery of undergraduate. (Our school does, I don't know your school.) It's difficult, so it's a good degree. And it's free tuition, right? You'll get two more years of undergraduate study.
However, I personally recommend that you work first and then take the test, now the bachelor's degree is not good enough to find a job.