Critical care nurses generally work in places such as intensive care units or burn centers. They provide assistance to patients with life-threatening illnesses or conditions such as surgery or serious infections. Students interested in critical care might take courses such as physiology, chemistry, and microbiology.

Students can select individual courses in accordance with their interests. Students may also structure a series of classes in a way that might achieve specific objectives such as improving job skills, pursuing new careers, or obtaining certificates or degrees.

Online learning refers to use of electronic media and information and communication technologies (ICT) in education. With online learning one has the flexibility to access their studies at any time and from anywhere they can log on.