You have now completed the Star-Fleet Academy Medical Course, well almost. The last hurdle is the exam.
By studying this course, you have hopefully learnt what it takes to play a good medical character in STF. This doesn’t mean you have to stick to this course. Its only purpose is to give you guidance where you may need it.
You should feel free to create your own diseases and cures and also the equipment you need to help your through your time in STF. Though with the equipment, it really should be approved by Star-Fleet Engineering to be official, but who says you can’t jury-rig something for a sim.