A clear, practical roadmap for anyone thinking about becoming a Certified Nursing Assistant — training hours, the exam, costs, and what comes next.
Becoming a CNA is one of the fastest ways to start a healthcare career. The training is short, the work is hands-on, and the demand is steady. It is also a strong foundation if you later decide to become an LPN, RN, or specialty caregiver. This guide walks through the steps from deciding to train to getting listed on your state registry.
Rules, costs, and timelines vary by state, so always confirm details with your state board of nursing or department of health. The steps below are the common path most students follow.
Most states require you to be at least 16 or 18 years old, have a high school diploma or GED, pass a basic background check, and show proof of a negative TB test and up-to-date immunizations. Some states also require a physical exam. The rules are set by the state board of nursing or the department of health, so check your state's CNA candidate handbook before enrolling.
Your training program must be approved by the state that will issue your certification. Programs are offered through community colleges, vocational schools, high school career centers, nursing homes, hospitals, and some home health agencies. Federal rules set a minimum of 75 hours of training, but many states require more — often 100 to 175 hours split between classroom and hands-on clinical training.
Classroom time covers resident rights, infection control, communication, safety, body mechanics, vital signs, and basic anatomy. Clinical hours are supervised practice in a real long-term care or hospital setting, where you perform personal care, transfers, feeding, and documentation with residents. This is where the skills test starts to feel natural, so show up early, ask questions, and volunteer for the skills you are least comfortable with.
After training, your instructor or employer will give you the paperwork to apply for the exam. Most states use a third-party testing company like Credentia, Prometric, or D&S Diversified Technologies. You will schedule the written or oral knowledge test and the hands-on skills test. Some states allow you to test at the training facility; others use regional testing centers.
The knowledge test is usually 70 to 100 multiple-choice questions covering resident rights, safety, infection control, communication, basic nursing skills, and care of residents with dementia or end-of-life needs. Many states offer an oral version if reading is a barrier. The passing score is typically around 70% to 80%, depending on the state.
The skills test asks you to perform five to seven skills in front of an evaluator. Handwashing is almost always one of them, and the rest are drawn at random from your state's skill list. Each skill has critical steps that must be done correctly to pass. Talking through each step as you perform it helps the evaluator score you and helps you catch a missed step before it is too late.
After you pass both parts of the exam, your name is added to the state nurse aide registry. You are not allowed to work as a CNA until you are listed. Most registries issue a registry number and a card. Keep your CPR certification current and know your registry number, because every employer will ask for it.
Start with settings that hire new CNAs: long-term care, assisted living, memory care, and rehabilitation hospitals. Hospitals often want experience, but not always. Apply with a clean resume, your registry number, CPR card, and a list of shifts you can work. Be ready for a short interview that asks how you would handle transfers, difficult residents, and heavy assignments.
Costs vary widely by state, training provider, and whether your employer pays for training. These are typical ranges for students who pay out of pocket.
These free guides are built to move with you through training and into your first job.
Free CNA practice test
20 real-style questions with instant answers and explanations.
CNA skills test guide
The most-tested skills, step-by-step, with the mistakes that lose points.
CNA interview questions
20 real questions with example answers you can make your own.
CNA resume examples
Full no-experience and experienced resumes, plus bullet phrasing you can copy.
Want to go further with your CNA prep?
Clock That Care members get full practice tests, skills walkthroughs, Debbie's clinical survival coaching, caregiver wellness tools, and a supportive community built around people who do this work.
See what members getMost students finish training in 4 to 12 weeks, then spend another 2 to 6 weeks scheduling and passing the state exam and getting listed on the registry. The full path from first class to first shift is usually 2 to 4 months.
Total costs are usually $700 to $2,500 for tuition, books, scrubs, exam fees, and background checks. Many employers, workforce boards, and nursing homes offer free or reimbursed training in exchange for a work commitment.
A CNA provides hands-on personal care under the direction of a licensed nurse. CNAs do not diagnose, prescribe, administer medications, or interpret lab results. LPNs and RNs have more advanced training, a longer program, and a broader scope of practice.
No. CNA training is a short certificate program, not a college degree. Some CNAs later go to LPN or RN school, but the CNA itself does not require college.
CNAs work in nursing homes, hospitals, assisted living, home health, hospice, and rehab. Many become medication aides, restorative aides, or unit secretaries, then bridge into LPN, RN, or specialty certifications like dementia care or wound care.
Yes. Most states require renewal every one to two years. Renewal usually requires proof that you worked a minimum number of paid hours as a CNA and that your background check and any required continuing education are current.