Nursing school combines science-heavy prerequisites, core nursing courses, and hundreds of hours of hands-on clinical practice. The exact lineup depends on whether you pursue an Associate Degree in Nursing (ADN) or a Bachelor of Science in Nursing (BSN), but every program shares a common foundation of anatomy, pharmacology, patient assessment, and supervised clinical rotations across multiple healthcare settings.
Prerequisite Courses
Before you start any actual nursing coursework, you need to complete a set of prerequisite classes. These are mostly science courses, and most programs require a grade of C or higher in each one. If you took them more than 10 years ago, many schools consider them expired and will ask you to retake them.
A typical prerequisite list includes:
- Human Anatomy and Physiology I and II with labs (4 credits each)
- Microbiology with lab (4 credits)
- Introduction to Chemistry with lab (4 credits)
- Statistics (3 credits), covering hypothesis testing and inferential methods
- Developmental Psychology (3 credits), sometimes called Lifespan Psychology
- Nutrition (3 credits)
- Social or Behavioral Science elective (3 credits)
Some programs also require English composition, general biology, or an introductory psychology course. If you already have a bachelor’s degree in another field, you may have knocked out several of these during your first degree, which can shorten your timeline significantly.
Core Nursing Courses
Once you’re admitted to the nursing program itself, the coursework shifts from general science to applied nursing knowledge. These are the classes that teach you how the body breaks down, how to recognize it, and what to do about it.
Nursing Fundamentals
This is your first true nursing course. It covers the basics of patient care: hygiene, mobility, wound care, infection control, vital signs, and documentation. You’ll learn how to take a blood pressure manually and electronically, assess pain, measure respirations, and check pulses at different points on the body. Fundamentals is where most students first practice on mannequins or classmates before ever touching a real patient.
Health Assessment
Health assessment teaches you to perform a systematic head-to-toe physical exam. You’ll learn to evaluate the head, eyes, ears, nose, and throat, then move through the lungs, heart, abdomen, musculoskeletal system, and neurological function. The course also covers mental health screening, including how to assess for suicide risk and cognitive changes. For students in programs with maternity and pediatric components, assessment skills expand to include fetal heart tones, newborn Apgar scoring, and age-appropriate exams for infants and children.
Pharmacology
Pharmacology is one of the most content-dense courses in any nursing program. You’ll study how drugs work in the body, organized by the conditions they treat: pain medications and anti-inflammatory drugs, antibiotics and antimicrobials, blood pressure medications, blood thinners, heart failure treatments, insulin and other diabetes drugs, asthma medications, seizure medications, and psychiatric drugs. Dosage calculations are a major component. You’ll practice converting between measurement systems, calculating drip rates, and adjusting doses based on patient weight.
Pathophysiology
Where anatomy teaches you what’s normal, pathophysiology teaches you what goes wrong. The course walks through disease processes system by system: how high blood pressure damages blood vessels, how plaque builds up in coronary arteries, how uncontrolled blood sugar injures organs over time, how infections trigger immune responses, and how neurological diseases like Parkinson’s and epilepsy disrupt brain signaling. Understanding these mechanisms is what allows you to connect a patient’s symptoms to the underlying problem.
Medical-Surgical Nursing
Often called “med-surg,” this is the broadest clinical course in the program. It covers the care of adult patients with a wide range of conditions, from post-surgical recovery to chronic disease management. Most programs split med-surg into two semesters because the volume of material is so large. This course ties together everything from pharmacology, pathophysiology, and assessment into care planning for real patient scenarios.
Specialty Nursing Courses
Beyond the core, you’ll take courses focused on specific patient populations. These typically include:
- Pediatric Nursing: caring for infants, children, and adolescents, with attention to developmental milestones, growth monitoring, and age-specific conditions
- Obstetric and Maternity Nursing: covering prenatal care, labor and delivery, postpartum recovery, and newborn care
- Psychiatric and Mental Health Nursing: focused on mental status assessment, therapeutic communication, crisis intervention, and understanding psychiatric conditions and their treatments
- Community and Public Health Nursing: a broader lens on health, covering epidemiology, disease prevention, public health policy, disaster preparedness, and how social factors like income, race, and geography shape health outcomes
Community health nursing in particular asks you to think beyond individual patients. You’ll analyze population-level data, examine health disparities across different groups, and explore how public policy and environmental safety initiatives affect community well-being.
Clinical Rotations
Classroom learning is only half the picture. Every nursing program requires extensive clinical hours where you care for actual patients under supervision. Programs generally require at least 600 hours of clinical experience before graduation, though many exceed that number.
Clinical rotations cycle you through multiple healthcare settings so you gain exposure to different types of nursing. According to the American Nurses Association, typical rotation sites include long-term care facilities, acute care hospitals, medical-surgical units, pediatric wards, labor and delivery departments, mental health facilities, and community settings like public health clinics or schools.
Some of these hours may take place in simulation labs, where high-fidelity mannequins mimic real patient responses. The National Council of State Boards of Nursing has found that simulation can effectively substitute for a portion of traditional clinical time, though the exact percentage allowed varies by state. The quality of the experience matters more than the raw hour count.
ADN vs. BSN: What’s Different
An ADN takes about two years (plus prerequisites) and focuses tightly on clinical nursing skills. You’ll take nursing fundamentals, microbiology, med-surg, pediatric nursing, community health, and psychiatric nursing. The goal is to prepare you to pass the NCLEX licensing exam and start working as a registered nurse.
A BSN takes four years and includes everything in an ADN plus additional coursework in areas that prepare you for leadership and advanced practice. BSN programs add courses in nursing ethics, evidence-based practice, nursing research, public health, informatics, and leadership or management theory. These extras are increasingly important: many hospitals now prefer or require a BSN for hire, and a BSN is the minimum starting point if you ever want to pursue a master’s degree or nurse practitioner certification.
Professional and Leadership Courses
BSN programs in particular include several non-clinical courses designed to round out your professional skills. Nursing informatics teaches you how healthcare technology systems work, from electronic health records to data analysis tools. Evidence-based practice courses train you to read and apply research findings to patient care decisions. Leadership and management courses cover organizational theory, interprofessional collaboration, policy formation, and resource management.
These classes might feel less urgent than pharmacology or med-surg while you’re in school, but they shape how you’ll function in a healthcare system that increasingly expects nurses to lead quality improvement projects, advocate for policy changes, and collaborate across disciplines. They’re also the foundation for anyone considering a future move into administration, education, or advanced practice roles.