I have a lab to do this Friday 11:30 for Bio 1A03 however I have to do a test that day too, from 10am-12pm. Should I immediately just MSAF this lab or talk to my lab coordinator? Thanks!

Talk to the lab coordinator. Most likely they'll have you do a make-up lab without requiring an MSAF. Getting the test moved is also a possibility.

I think you could move your lab to some other day without using MSAF. Talk to the professor or the lab coordinator, you probably just need to prove that your lab and the test overlap