1.Be sure that ur first contact with a college/educational institution is after a month of being in the US. This is important since at the time of the COS interview ur intention to come to the US may be doubted. I've read this on many Websites. Do some volunteer work at a local hospital to certify ur interest. 2.Are u from a developing country? U may have to explain why u are taking up nursing to the immigration officer since the salaries in developing countries are like only 100 dollars a month. Be ready to answer this question! 3. Thirdly hire a lawyer since COS from visitor status to F1 status is complicated. 4. check on ur vistor visa.....that there is no line that says "COS not allowed" or something like it. Overseas embassy officials may often add this line if they feel that u may apply for as change of status in the US. 5. If ur fortunate enough to get a change of status to F1, dont leave the country till ur education is over and u find a job.........this is most important......since in order to get back u will need a student visa from the local US embassy.....this is when a rejection is likely (intention to immigrate issue). 6. Remember the GC is the only way of working as a nurse (with an ADN/BSN) after ur OPT is over. So if u dont want to go back to ur country after studies look for a hospital who is willing to sponsor for the GC......no point in working with a hospital who wont, during ur OPT. Many students make this mistake or apply for the OPT too late. My situation is quite like yours except that i can study anything i want in the US (my visa allows it) but i want to qualify for the OPT after studies, so i need F1 Status. I am thinking of the direct entry MSN though. Best of Luck.............oh one more thing i dont know whether u will get an F1 status in order to complete nursing prerequisites. Be sure to ask. bye Lee