Hey diego here from California. FF/EMT with the state. finished my paramedic school and have failed NREMT 2x all ready. Thanks for all the good info in regards on how to test and get ready. I have my test Jan 31st. I have medictests.com and have blown off the dust on my book. I know you can't post questions from the test. but I have a question in regards to FI02. What do i need to know for the test about that? The situation was to change a setting on the ventilator to get a better FIO2 reading. Im reading my book and it has nothing in regards to that? any help is good help thanks in advance!!!!!