A Complete Guide to Nursing Prerequisites and Beginning Your Nursing Career
Choosing nursing as a career can be deeply fulfilling, but the path to becoming a professional RN begins long before you step foot in a clinical setting. It starts with successfully completing your prerequisite courses for nursing school. These foundational courses are not just requirements to get through; they are the key foundations that ensure you have the necessary knowledge base to handle the rigorous demands of a bachelor’s-level nursing program, ADN program, or Accelerated BSN (ABSN) program.
This guide will break down the essential prerequisite courses for nursing school, show you how to navigate complex requirements, and highlight student-friendly routes available for every type of student—from students fresh out of high school to career changers.
What Are Nursing Prerequisites and Why Do They Matter?
Nursing prerequisites are a specific set of required college-level courses that must be completed before a student can apply to or enroll in a nursing program. These courses serve three main purposes:
- Build Foundational Knowledge: They provide the necessary science and general-education base to understand advanced concepts in pharmacology, pathophysiology, and patient care.
- Demonstrate Academic Readiness: Your performance in these courses, particularly your science/prerequisite GPA, is often the top consideration for admission committees when determining if you can handle the academic load of nursing school.
- Set a Common Baseline: They ensure all students entering a program have met a shared threshold of academic preparation, regardless of their previous major or educational background.
A solid GPA in your science prerequisites (typically 3.0 or higher) is critical for gaining acceptance into many programs.
Essential Science and Math Prerequisites for Nursing School
While specific requirements can differ by school and location, there is a core set of pre-nursing classes that almost every program demands. These are often the hardest prerequisites, but they are key to your success in the field.
The Core Science Trio (The Non-Negotiables)
These three disciplines form the foundation of medical understanding and patient care:
- A&P I and II: Often split into two semesters, A&P is arguably the most critical prerequisite. You'll learn the structure (anatomy) and function (physiology) of the human body, which is central to understanding health and disease.
- Introductory Microbiology: This course covers microorganisms (bacteria, viruses, fungi, and parasites), their relationship to the human body, and the mechanisms of infection and immunity. It’s crucial for grasping infection control and infectious diseases.
- General Chemistry: Typically, general chemistry is required, sometimes followed by an organic chemistry or biochemistry component. This knowledge is crucial for understanding pharmacology, fluid and electrolyte balance, and metabolic processes.

Other Common Prereqs: Math, English, and Gen Ed
In addition to the hard sciences, nursing programs require general education courses to ensure you possess strong critical thinking, communication, and social awareness skills:
- Math: Usually includes Algebra at the college level and/or Statistical Methods. Statistics is particularly important for interpreting medical research and evidence-based practice.
- Writing & Communication: Freshman Composition is required to hone the clear, professional communication skills necessary for documenting patient charts and interacting with healthcare teams.
- Behavioral Sciences: Courses like Psychology (especially Developmental Psychology/Lifespan Development) and Sociology are crucial for understanding human behavior, mental health, and the social dynamics that affect patient wellness.
- Nutrition Science: A dedicated course on nutrition is increasingly common, covering dietetics and the role of food in health and disease management.
Key Logistics for Nursing Prereqs
Completing the courses is only one piece of the puzzle. Successful applicants must also navigate administrative and logistical requirements effectively.
Accreditation Basics for Nursing Programs
Accreditation is absolutely essential. You must ensure that the nursing program you plan to apply to is recognized by a national organization, such as the CCNE or the ACEN accreditation.
Why This Is Important:
- It verifies the program meets rigorous national quality standards.
- It ensures you are eligible to sit for the National Council Licensure Examination for RNs.
- It is often required for FAFSA eligibility, military support, and hiring.
Maximizing Your Credit Transfer Guide
If you have existing college credits, knowing how to transfer them can save you significant time and tuition. Programs have specific credit transfer policies. It's vital to:
- Check Matching Courses: Contact the nursing school's admissions office to confirm that your specific course at your current college is accepted as equivalent to their prerequisite.
- Confirm the Time Window: Many science prerequisites (A&P, Microbiology) have a time limit and may need to have been completed within the last five to ten years to be accepted.
- Understand Grading Requirements: Most programs require a letter grade (usually a "C" or better) for all prerequisites, especially the core sciences. Pass/Fail grades are often not accepted.
Know Your State Requirements
It's crucial to understand that state regulations affect your licensing. While prerequisites are set by the school, nursing regulations and licensing standards (such as background checks, clinical hour requirements, and NCLEX registration) are governed by your state’s Board of Nursing. Always consult the official board for the state where you plan to practice to ensure your chosen program meets all necessary criteria.
Finding the Right Path: Flexible Options for Every Student
The journey to nursing school isn't a single set path. Many resources are available to help busy adults meet their pre-nursing requirements without interrupting their lives.
Virtual Prereq Options
The rise of online prereqs offers unparalleled flexibility. Taking courses like Statistics, Psychology, and even some science courses virtually allows students to:
- Control Their Timeline: Many accredited platforms offer self-paced learning, which is ideal for working adults or single parents.
- Save Money: Online courses from community colleges or external educational providers often have a lower tuition cost.
- Learn Anywhere: Overcoming geographical limitations to access required courses.
Note: Always verify with your target nursing school that they accept online prerequisites, particularly for laboratory components.
Extra Support for Non-Traditional Students
- Accelerated Nursing Programs (ABSN): If you already hold a bachelor’s degree in a non-nursing field, you are the perfect fit for an ABSN program. These programs condense the nursing curriculum into roughly a year to a year and a half. You still need to complete the core science and math pre-nursing classes, but your previous degree fulfills the general education requirements.
- Veterans: Military medical experience and training (such as medic or corpsman training) can often be leveraged for credit or to waive certain prerequisites. Explore specialized programs that recognize and integrate your military background.
Financial Planning: Understanding the Cost of Prerequisites
The Cost Analysis of your education should cover more than just nursing school tuition. Taking prerequisites can represent a significant financial investment.
Plan for:
- Per-Credit Tuition: Community colleges usually offer the most affordable path for prerequisites. Anatomy, and Requirements .
- Textbook and Lab Fees: Science courses often have mandatory lab fees and expensive textbooks.
- Financial Aid: Prerequisites taken at a college or university may be eligible for federal financial aid (FAFSA), especially if you are seeking a degree or certificate.
Taking your prerequisites strategically and utilizing affordable, accredited online options is the most effective method to maximize your return on investment (ROI) and minimize debt before the main nursing program even begins.

Wrapping Up: Start Strong With Prereqs
Completing your pre-nursing requirements is the first and most crucial step toward your goal of becoming a nurse. It requires a clear plan, a strong focus on your science GPA, and a commitment to understanding the unique requirements of your chosen nursing programs.
Take the time now to:
- Map Out Your Courses: Compare the prerequisites of three different nursing schools you are interested in and create a master list of courses you need.
- Confirm Transfer Credits: Contact the admissions offices of your target schools prior to enrolling in any course.
- Treat Prereqs Seriously: Treat these courses as an audition for nursing school. High grades will unlock opportunities to the best programs.
Start your planning today, and you will be well on your way to a successful application and a fulfilling career in professional nursing.
