A Complete Guide to Nursing Prerequisites and Beginning Your Nursing Career
Starting a nursing career is an incredibly rewarding choice, but the path to becoming a Registered Nurse (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 crucial academic building blocks that ensure you have the necessary knowledge base to handle the academic intensity of a Bachelor of Science in Nursing (BSN), ADN program, or Accelerated BSN (ABSN) program.
This guide will break down the essential prerequisite courses for nursing school, show you how to navigate varying admissions standards, and highlight student-friendly routes available for every type of student—from recent high school graduates to career changers.
What Are Nursing Prerequisites and Why Do They Matter?
Nursing prerequisites are designated college classes needed before entry that must be completed before a student can apply to or enroll in a nursing program. These courses serve three core functions:
- Lay the Groundwork: They provide the necessary scientific and humanities background to understand advanced concepts in medications, disease processes, and clinical care.
- Show Admission Committees You Can Succeed: Your performance in these courses, particularly your Prerequisite GPA, is often the primary factor for admission committees when determining if you can handle the academic load of nursing school.
- Ensure Consistent Preparation: They ensure all students entering a program have met a baseline level of academic preparation, regardless of their previous major or educational background.
A strong GPA in your science prerequisites (typically 3.0+) is critical for gaining acceptance into many programs.

Core Nursing School Prerequisites: Science, Math, and More
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 most challenging courses, but they are key to your success in the field.
The Big Three Science Prereqs
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 one of the most important prereqs. You'll learn the structure (anatomy) and function (physiology) of the human body, which is essential 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.
- 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.
Math, English, and General Education Requirements
In addition to the hard sciences, nursing programs require general education courses to ensure you possess strong analytical, communication, and social awareness skills:
- Mathematics: Usually includes Algebra and/or Statistics. Statistics is particularly important for interpreting medical research and evidence-based practice.
- Writing & Communication: Comp I and II is required to hone the clear, professional communication skills necessary for documenting patient charts and interacting with healthcare teams.
- Social & Behavioral Sciences: Courses like Psychology (especially Human Development) and Intro Sociology are crucial for understanding human behavior, mental health, and the social dynamics that affect patient wellness.
- Nutrition: A dedicated course on nutrition is increasingly common, covering dietetics and the role of food in health and disease management.
Handling the Details: Accreditation, Transfers, and Picking a Program
Completing the courses is only half the battle. Successful applicants must also navigate administrative and logistical requirements effectively.

Accreditation Basics for Nursing Programs
Accreditation is paramount. You must ensure that the nursing program you plan to apply to is recognized by a national organization, such as the Commission on Collegiate Nursing Education (CCNE) or the Accreditation Commission for Education in Nursing (ACEN).
Why You Should Care:
- It verifies the program meets national benchmarks for quality.
- It ensures you are eligible to sit for the NCLEX-RN.
- It is often required for FAFSA eligibility, military support, and hiring.
Making the Most of Transfer Credits
If you have existing college credits, knowing how to transfer them can save you significant cost and effort. Programs have specific course equivalency policies. It's vital to:

- Confirm Course Equivalency: Contact the nursing school's admissions office to confirm that your specific course at your current college is accepted as equivalent to their prerequisite.
- Make Sure Credits Aren’t Too Old: 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.
- Review Pass/Fail Policies: 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. Essential College Courses Needed Before Starting Nursing .
Know Your State Requirements
It's crucial to understand that Board of Nursing rules 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.
Options That Fit Your Life
The journey to nursing school isn't the same for everyone. Many resources are available to help career changers meet their nursing prerequisites without interrupting their lives.
Taking Nursing Prereqs Online
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.
- Reduce Costs: Online courses from community colleges or external educational providers often have a lower tuition cost.
- Avoid Location Limits: 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 BSN Tracks: If you already hold a bachelor’s degree in a non-nursing field, you are the prime applicant for an ABSN program. These programs condense the nursing curriculum into 12-18 months. You still need to complete the core science and math prereqs, but your previous degree fulfills the general education requirements.
- Veterans & Military: 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.
Costs to Expect for Nursing Prereqs
The cost breakdown of your education should cover more than just nursing school tuition. Taking prerequisites can represent a significant financial investment.
Be sure to factor in:
- Per-Credit Tuition: Community colleges usually offer the most affordable path for prerequisites.
- Materials 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 smartest approach 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 careful planning, a strong focus on your science GPA, and a commitment to understanding the unique requirements of your chosen nursing programs.
Your next steps should be:
- Create Your Course Roadmap: 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 open the doors to the best programs.
Get started now, and you will be well on your way to a successful application and a fulfilling career in professional nursing.