You might think that it is easy to be a nurse and that there are just many of them around. The truth is there are some parts of the world wherein there is a current shortage of nurses. This is because its not only that getting a nursing degree is tough; it is also quite expensive. It would take a four year college degree nursing course and a year of reviewing and passing the nursing licensure exam before you end up being a professional nurse. Due to the length of time and for lack of monetary capacity , most individuals who would like to be part of the medical care field would take up the Certified Nursing Assistant or CAN for short training course.CNA Training is shorter and demands less qualifications. Its duration is only about 6 to 12 weeks that is culminated with a final exam to complete the training.