Becoming an ADN (Associate Degree in Nursing) nurse typically takes about two years of full-time coursework, though most students spend an additional one to two semesters completing prerequisites before the core program begins. The path involves finishing prerequisite courses, passing a nursing entrance exam, completing a competitive nursing program, and then passing the NCLEX-RN to earn your registered nurse license. Here’s what each step looks like in practice.
Complete Prerequisite Courses First
Before you can apply to an ADN program, you’ll need to finish a set of foundational courses. While every school’s list varies slightly, most programs require around nine prerequisites covering science, math, communication, and psychology. A typical prerequisite list includes:
- Human Anatomy and Physiology I and II
- Microbiology
- Introduction to Chemistry
- English Composition
- Statistics
- Nutrition
- Lifespan Psychology (also called Developmental Psychology)
- A communication or intercultural communication course
GPA requirements matter here more than many students expect. Programs commonly require at least a 2.0 in each individual prerequisite, with a 3.0 cumulative GPA across your science courses. Since ADN programs are competitive, a higher GPA improves your chances of being accepted. Many applicants take these prerequisites at the same community college where they plan to apply, which can simplify the process, but courses taken elsewhere generally transfer if the school is regionally accredited.
Prerequisites alone can take two to three semesters if you’re starting from scratch. Students who already hold a bachelor’s degree in another field sometimes have several of these covered, which shortens the timeline considerably.
Pass a Nursing Entrance Exam
Most ADN programs require you to take either the TEAS (Test of Essential Academic Skills) or the HESI A2 before applying. Which exam you need depends entirely on the school.
The TEAS covers reading, math, science, and English language usage and costs roughly $70 to $100. The HESI A2 tests math, reading, vocabulary and grammar, and anatomy and physiology, with some schools adding extra sections. It runs about $40 to $100 depending on your testing location. Passing score requirements vary by school. Some set minimum scores for each section, while others look at your overall performance. Either way, study guides and practice exams are widely available, and most students spend four to six weeks preparing.
Apply to an ADN Program
ADN programs are offered primarily at community colleges, though some private nursing schools and technical colleges have them too. Admission is competitive. Schools typically rank applicants using a points system that weighs prerequisite GPA, entrance exam scores, and sometimes prior healthcare experience or volunteer hours.
When evaluating programs, check for accreditation from ACEN (the Accreditation Commission for Education in Nursing), which accredits the full range of nursing programs from practical nursing through doctoral degrees. Accreditation matters for two practical reasons: it affects whether your credits will transfer if you later pursue a bachelor’s degree, and many employers prefer or require graduation from an accredited program. CCNE, the other major nursing accreditor, focuses on bachelor’s and graduate-level programs, so ACEN is the one you’ll encounter most often at the associate degree level.
What the Program Looks Like
A standard ADN program is a four-semester, 60-credit-hour curriculum leading to an Associate in Applied Sciences degree. The coursework blends classroom learning with hands-on clinical rotations in hospitals, clinics, long-term care facilities, and other healthcare settings.
Your first semester typically focuses on fundamentals of nursing: basic patient assessment, medication administration, vital signs, sterile technique, and the communication skills you’ll use with patients and care teams. Courses get progressively more specialized, moving into medical-surgical nursing, mental health nursing, maternal and newborn care, and pediatrics. Pharmacology runs through much of the program, building your understanding of how common medications work and when they’re used.
Clinical rotations are the most demanding part. You’ll work with real patients under the supervision of a clinical instructor, applying what you’ve learned in the classroom. There is no universal national minimum for clinical hours. The number is set by individual state boards of nursing and individual programs, so total clinical time varies. Expect to spend significant time on your feet in clinical settings, often starting very early in the morning and managing patient assignments that grow more complex each semester.
Most programs require maintaining a minimum grade (often a C+ or B-) in every nursing course to continue. Falling below that threshold in even one course can mean repeating the entire semester or being dismissed from the program.
Pass the NCLEX-RN
Graduating from an ADN program makes you eligible to sit for the NCLEX-RN, the national licensing exam for registered nurses. You don’t automatically become an RN upon graduation. You need to pass this exam first.
The process involves several steps that run in parallel. You’ll register with Pearson VUE, the testing company, at a cost of $200. Your school recommends doing this at least 30 days before you graduate. Separately, you’ll submit an application to your state board of nursing, complete a fingerprint-based criminal background check, and (in some states like Texas) pass a nursing jurisprudence exam that tests your knowledge of state nursing laws.
Once your state board has received all required items, including your school’s confirmation that you graduated, staff will review your file and issue an Authorization to Test (ATT). In Texas, this review takes up to 15 business days after the last document arrives, and the ATT email follows within five business days after that. Your ATT is valid for 75 days and cannot be extended, so you’ll want to be ready to schedule your exam promptly.
The NCLEX-RN itself is a computerized adaptive test, meaning it adjusts question difficulty based on your answers. It covers safe patient care, clinical judgment, pharmacology, and nursing procedures. Most test-takers finish in two to three hours. First-time pass rates vary by program, so looking up a school’s NCLEX pass rate before you apply is a smart move.
ADN Salary and Job Prospects
Once licensed, ADN-prepared nurses hold the same RN license as nurses with a bachelor’s degree. The median annual salary for registered nurses was $93,600 in 2024, with the average (mean) salary reaching $98,430. Your actual pay depends heavily on where you work, your shift schedule, and your specialty. Nurses in metropolitan areas, those working night shifts, and those in high-acuity settings like emergency departments or intensive care units tend to earn more.
ADN graduates can work in hospitals, outpatient clinics, surgical centers, home health, long-term care, and many other settings. Some hospitals, particularly large academic medical centers and magnet-designated facilities, prefer or require a bachelor’s degree for new hires. This doesn’t shut out ADN nurses, but it can limit options at certain employers, especially in competitive urban job markets.
Advancing From ADN to BSN
Many ADN nurses eventually complete an RN-to-BSN bridge program to earn a Bachelor of Science in Nursing. These programs are designed specifically for working nurses and are widely available online. A typical RN-to-BSN curriculum is about 30 credit hours and can be completed in three to four semesters. Texas A&M’s program, for example, follows this structure with entirely online coursework.
The coursework in a bridge program covers leadership, community health, research methods, and evidence-based practice, filling in the topics that an associate degree doesn’t have time to address. Completing a BSN opens doors to management roles, certain specialty certifications, and graduate school if you’re interested in becoming a nurse practitioner, nurse educator, or clinical nurse specialist down the road.
Starting with an ADN and bridging to a BSN later is one of the most cost-effective paths into nursing. Community college tuition for an ADN is a fraction of what a four-year university charges, and you can work as a full-time RN while finishing your bachelor’s degree.