Can I use another vocational nursing program introduction course in place of prerequisite NRS 100: Introduction to Vocational Nursing? July 28, 2022 15:26 You must take NRS 100 course at Citrus College as outside introduction courses will not be accepted. Related articles Can I enroll as an international student if I am not 18 years old when school starts? Can I complete my EOP&S contacts with a Promise counselor? Can I take a math class with a corequisite even if I placed directly into the transfer-level math class?