The CNA written exam has 60 to 70 questions — depending on your state and testing vendor. Most states use either Prometric or Pearson VUE. Both formats cover the same five content domains, and passing means scoring correctly on enough questions to meet your state's cut score, which usually lands around 70% but varies considerably by state.
Here's the thing: the questions aren't just nursing trivia. They're scenario-based. You'll read a short description of a patient situation and pick the best response. That framing trips up candidates who study facts but don't practice applying them under real test conditions. Knowing that hand hygiene requires soap and water when hands are visibly soiled is one thing. Choosing the right answer when a distractor option sounds equally reasonable is another skill entirely.
That's exactly why free CNA practice tests matter. Reading a textbook about how to handle a resident who refuses care is one thing. Choosing the right answer when the clock is running — and four options all sound reasonable — is a different cognitive task. Practice testing trains the mental habits that written study can't fully replicate. The timing pressure alone changes how your brain processes the options.
The five domains covered on the written exam are: Basic Nursing Care, Personal Care Skills, Safety and Infection Control, Mental Health and Social Service Needs, and Restorative Care. Your test won't label the questions by domain — they're mixed together in no particular order. But knowing which domain you're weak in helps you study smarter, not just longer. A candidate who's strong in personal care but shaky on infection control needs a different prep plan than one who's the reverse, and treating all five domains as equally urgent is a poor use of limited study time.
Two additional points most guides skip: first, the CNA exam is not adaptive — every candidate gets the same pool of questions randomized, so there's no penalty for wrong answers affecting later questions. Second, you can usually flag and return to questions within the written portion, so if a scenario stumps you, mark it and keep moving rather than burning five minutes on one item. Both of these procedural facts matter for your test strategy as much as content knowledge does.
Start with our CNA Basic Nursing Skills quiz to benchmark where you stand right now. Then use the domain breakdown below to target the areas that need the most work before your test date. Most candidates need 4 to 6 weeks of consistent practice to feel genuinely ready — not because the content is obscure, but because the scenario format takes time to internalize.
Don't underestimate the adjustment period. The first few practice tests tend to be humbling regardless of how well you know the material, and that's completely normal. Scoring improves significantly once you understand the logic behind how scenario questions are constructed and what distinguishes the "best" answer from the "correct but not best" options. Stick with it every day — the improvement curve is consistently steep and genuinely fast.
Don't just click through practice questions and check whether you got them right. That's passive studying — it feels productive but doesn't stick. The technique that actually works is active error analysis: when you miss a question, write down why in one sentence before moving on. Was it because you didn't know the clinical fact? Misread the question? Got confused between two similar options? Each failure mode needs a different fix, and lumping them together wastes prep time.
Spacing your practice sessions matters more than total hours. Five 30-minute sessions across a week beats a single three-hour cram session. Your brain consolidates information during the gaps between study sessions — that consolidation is where actual learning happens. Short, frequent practice tests are not just more convenient than marathon study blocks; they're demonstrably more effective for the type of scenario-based recall the CNA exam requires. Build the habit early, not in the final week.
Set a realistic schedule. Six weeks before your test date, take a full timed practice test to establish a baseline score. Four weeks out, focus exclusively on your two weakest domains. Two weeks out, do timed full exams daily — not topic-by-topic study sessions, but complete 60-question timed runs. The night before, don't cram. Review your error log, sleep at a normal hour, and eat before you go in. Cramming the night before produces anxiety, not retention.
For the clinical skills portion, the practice test can't fully prepare you — you need to physically practice each skill. But the written portion is completely trainable with consistent test practice. Most people who fail the written exam didn't fail because the material was too hard; they failed because they ran out of time or second-guessed answers they initially got right. Timed practice builds the muscle memory to avoid both failure modes. Trust your first instinct more often than you think you should — research consistently shows that first-choice answers are correct more often than changes made under uncertainty.
One tactic most candidates overlook: after finishing a practice test, go back and flag every question where you weren't fully confident — even the ones you got right. Those flagged questions reveal your knowledge gaps more honestly than your score does. You might score 80% on a domain while being lucky on half of those correct answers.
Consistent confidence matters more than a single what is a good act score when you're trying to accurately predict real exam performance. A score of 75% with zero flagged questions is a better prep signal than a score of 82% where you guessed correctly on a quarter of them.
Our CNA Anatomy and Physiology Basics quiz and CNA Assisting with Daily Living quiz cover material that shows up across multiple domains — worth doing early in your prep cycle before you focus on specific weak areas.
Basic Nursing Care is the largest domain — expect roughly 16 to 19 questions out of the total 60 to 70. The questions focus on practical nursing tasks: measuring vital signs correctly, repositioning bed-bound residents to prevent pressure ulcers, recognizing signs of common conditions like diabetes or stroke, and operating basic medical equipment like oxygen delivery devices and feeding equipment.
A typical question might describe a resident with elevated blood pressure and ask which action the CNA should take first. The right answer is almost always to report to the nurse before doing anything else. CNAs don't diagnose or independently treat — knowing the scope-of-practice boundary is the single most critical concept in this domain. When any question asks what to do first, the answer is almost always report, not act.
Personal Care Skills covers the ADL (Activities of Daily Living) tasks that CNAs perform every shift: bathing (bed bath, shower, tub), oral hygiene, dressing, grooming, nail care, and assisting with elimination needs. Roughly 24% of the written exam — so 15 to 18 questions out of the total.
What the questions test isn't whether you know how to give a bath. They test whether you know the correct order of steps, how to preserve resident dignity throughout, and how to adapt care for residents with physical limitations. Dignity questions are common: always explain the procedure before starting, always provide privacy, always use the resident's preferred name. These principles are woven into every correct answer in this domain.
Safety and Infection Control accounts for about 21% of the test — 13 to 16 questions. Hand hygiene is the foundation: the exam tests correct handwashing technique (friction for at least 20 seconds), when to wash with soap and water vs. use hand sanitizer (soap and water when hands are visibly soiled or when caring for a C. diff patient), and when gloves are required. Standard Precautions apply to all residents, regardless of diagnosis.
Other areas: proper PPE sequence (gown, gloves, mask — in that order for donning; reverse for doffing), fall prevention strategies including bed rail policy and non-skid footwear, fire safety using the RACE acronym (Rescue, Alarm, Confine, Evacuate), and basic OSHA bloodborne pathogen rules. These questions are highly predictable — consistent practice test exposure makes them almost automatic on exam day.
This domain covers communication skills, resident rights, and care for residents with cognitive impairment. About 16% of the exam — 10 to 12 questions. Common scenarios: a resident with dementia becomes agitated during care, a resident expresses they don't want to eat, a family member demands information about another resident's condition.
Resident rights questions are legal territory: residents have the right to refuse care, the right to privacy, the right to be treated with dignity, and the right to file a grievance without retaliation. When in doubt on a resident rights question, the answer that most respects the resident's autonomy while keeping them safe is almost always correct. The CNA's job is never to override a competent resident's preferences — even when you disagree with their choice.
Restorative Care is the smallest domain — 8 to 10 questions, about 13% of the test. It covers how CNAs help residents maintain or regain function: passive and active range of motion exercises, assisting with ambulation devices (cane, walker, wheelchair), bladder and bowel retraining programs, and care for residents with prostheses or orthotic devices.
The key concept is the difference between passive ROM (the CNA moves the joint through its range) and active-assistive ROM (the resident participates as much as possible). The principle driving restorative care is maximizing the resident's independence — help them do as much as they safely can, rather than doing everything for them. Questions test whether you recognize that principle in action, not whether you can recite definitions.
Short answer: not much. Both vendors use test blueprints based on the same federal CNA competency standards (42 CFR Part 483). The content domains, question styles, and general difficulty level are comparable regardless of which vendor your state uses. What differs is the scheduling interface, testing center experience, and state-specific policies around ID cna requirements and electronics.
Check your state's nurse aide registry website to confirm which vendor administers your exam. Some states have switched vendors in recent years, so search for current information rather than relying on what a classmate took two years ago. Most cna registry websites have a direct link to schedule your exam through the correct vendor portal, along with the candidate handbook that covers ID requirements, what to bring, and what's prohibited in the testing room. Read the handbook — it's short and prevents avoidable surprises on test day.
One practical difference worth knowing: Prometric centers tend to be more widely distributed in rural areas. Pearson VUE has more locations in urban markets. If you're in a rural state and your closest testing center is two or three hours away, book early. Popular test dates fill up quickly in the weeks after CNA training programs graduate classes — spring and fall are especially competitive for scheduling slots. Don't wait until the week before your preferred date to schedule.
Both vendor systems allow you to reschedule with sufficient notice (typically 24 to 48 hours in advance). Emergency cancellations or no-shows usually forfeit the exam fee. Know the cancellation policy before you book, especially if your schedule is unpredictable. Life happens — but finding out after a no-show that your $150 fee is gone is an avoidable frustration.
State exam availability also matters: some states have more frequent testing windows than others. If your state offers testing monthly and another offers it every two weeks, that affects how long you wait after training before you can sit for the exam. Check the schedule well in advance rather than discovering a 6-week wait after finishing your training program.
Our CNA certification guide covers the full path from training to licensure, including state-specific registry details. If you're weighing whether a CNA career makes sense financially, the CNA jobs article breaks down current hiring markets and pay rates by state. Both are worth reading alongside your practice test prep.
The written exam is only half of it. Every CNA candidate must also pass a clinical skills evaluation — sometimes called the practical or performance exam. You'll be asked to demonstrate 5 randomly selected skills from a standardized list of 22 in front of a trained evaluator. The skills are selected randomly on test day, so you can't focus only on the ones you're comfortable with. You need to know all 22.
The 22 skills include hand hygiene, taking a radial pulse, measuring blood pressure, transferring a resident from bed to wheelchair, performing catheter care, making an occupied bed, measuring urinary output, and others. Each skill is scored on a detailed checklist — the evaluator marks whether you completed each required step, not just whether the overall result looked correct. That distinction is critical and surprises many first-time test takers.
Checklist scoring is unforgiving. You can perform a skill competently and still fail if you skip the step where you explain what you're doing to the resident, or forget to lock the wheelchair brakes before transferring. The evaluator isn't watching for clinical artistry — they're checking a list. If a step isn't on the checklist, doing it earns you nothing. If a required step is missing, that's points lost regardless of outcome.
Practice every skill out loud, narrating each step as you do it. Say: "I'm going to explain what I'm doing before I start" — then actually explain it. This builds the verbal habit that the checklist requires, and it slows you down in a useful way that makes it harder to skip steps. Physical practice with a mannequin or willing partner beats mental review alone by a significant margin for skills test prep.
Most states allow candidates who pass the written but fail the skills test — or vice versa — to retake only the failed portion within a certain window. Check your state cna registry's retake policy before your exam date so there are no surprises about fees or timing. And if you're still working through your CNA classes near me search, know that some cna programs include skills test prep sessions as part of training — worth asking about before you enroll.
Passing scores aren't universal. Each state sets its own cut score, which typically falls between 70% and 80% on the written portion. Your state's nurse aide registry publishes the exact cut score — look for it on their official website or in the candidate handbook. Don't guess at the cut score; know it exactly so you have a concrete target when you take practice tests. Aiming for "passing" without knowing the number is flying blind.
Most states allow three attempts at the full exam before requiring additional training. Some states reset the attempt clock after completing additional training hours. If you fail one portion but pass the other, most states let you retake just the failed portion, usually within a two-year window from your first attempt. Retake fees apply every time. Some states require you to retest within a specific period or lose credit for the portion you passed — check your state's specific policy, not general guidance.
Don't wait to schedule your retake. The longer the gap between your training and the exam — or between a failed attempt and a retake — the harder the clinical skills test becomes. Muscle memory fades faster than factual knowledge. Schedule the retake as soon as your state allows. Use the time between attempts to focus specifically on the areas where your feedback report shows weakness. Test vendors typically provide a domain performance summary after a failed attempt — that summary is more valuable than any generic study guide for your specific situation.
One more thing most guides don't say clearly: the performance summary after a failed attempt is your best study guide for the retake. It tells you exactly which domains you scored below the cut line. Ignore domains where you passed comfortably and drill the weak ones exclusively. That's not cutting corners — that's efficient preparation. Two or three weeks of focused domain practice is more effective than another round of general studying across all five areas.
Candidates worried about the overall timeline: from training completion to registry listing typically runs 6 to 12 weeks when everything goes smoothly. Plan job applications around that window, not around your training completion date. Employers can't hire you until your name appears on the state registry — that's the legal requirement, and there's no expediting it regardless of how urgently a facility needs staff. The free CNA classes guide can help you find cna programs with the fastest and most affordable path to exam eligibility if timing or cost is a constraint.