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What is on the CNA competency exam

Two parts — a written test and a hands-on skills demonstration. Here is what each covers, how the skills are scored, and the critical steps that fail candidates who knew the material.

The CNA competency evaluation is the gate between completing a training programme and being listed on your state's nurse aide registry.

It is two tests, and most people who fail do not fail on knowledge. They fail on a step they knew perfectly well and skipped because they were nervous and rushing.

The two parts

Federal requirements establish that nurse aide competency evaluation includes a written or oral examination and a demonstration of skills. The detail sits in 42 CFR 483.154.

You must pass both. Fail one and you retake that part, usually within a limited number of attempts and a defined time window.

Administration varies by state — some use a contracted testing provider, some run it through approved programmes — so the exact format, number of questions and retake rules come from your state's candidate handbook, which is the document to work from.

An oral version of the written test is typically available for candidates who need it, often with a reading comprehension component.

The written test

Multiple choice, commonly in the region of sixty to a hundred questions, covering the subject areas the training programme is required to include.

Expect questions across:

Personal care skills. Bathing, grooming, oral care, dressing, toileting, skin care, and the reasoning behind each.

Basic nursing skills. Vital signs, measuring intake and output, infection control, positioning, and recognising and reporting changes in condition.

Safety and emergency procedures. Fall prevention, transfer safety, fire safety, choking, and knowing when to call for help rather than intervening.

Mental health and social service needs. Caring for residents with dementia or cognitive impairment, managing difficult behaviour, supporting emotional wellbeing.

Communication and interpersonal skills. With residents, families and the care team — including communicating with people who cannot easily communicate back.

Residents' rights. Privacy, dignity, autonomy, the right to refuse care, freedom from abuse and neglect, confidentiality. This area carries more weight than candidates expect, because it is where the most serious real-world failures occur.

Legal and ethical behaviour. Scope of practice, mandatory reporting, documentation.

How to read the questions

Two habits help more than extra studying.

Pick the answer that is safest and most respectful. Where two options both seem workable, the correct one is nearly always the one that protects the resident's safety, dignity or choice.

Watch the scope. Options that involve doing something outside a nursing assistant's scope — diagnosing, deciding about medication, making a clinical judgement — are usually wrong, even when they sound helpful. The correct action is frequently "tell the nurse".

The skills demonstration

This is the part people find harder, and it is the part worth rehearsing physically rather than reading about.

You perform several skills — often around five — selected from your state's list. An evaluator watches and marks each step. Depending on the state and skill, you work with a live person acting as the resident or with a manikin.

Handwashing is very commonly one of the selected skills, and it is also embedded as a step inside most of the others.

Skills typically drawn from a list including: handwashing, applying gloves, measuring blood pressure, pulse and respiration, measuring and recording weight, assisting with a bedpan or urinal, perineal care, partial bed bath, oral care, denture care, dressing a resident with a weak arm, positioning on the side, transferring to a wheelchair with a gait belt, ambulating with a gait belt, passive range of motion, applying elastic stockings, feeding assistance, measuring output, and making an occupied bed.

Critical steps

Each skill has steps marked critical. Miss one and the whole skill fails regardless of how well you did everything else.

Critical steps are nearly always about infection control, safety or dignity:

  • Washing hands at the right points
  • Providing privacy before beginning
  • Checking or lowering the bed appropriately
  • Locking wheels before transferring
  • Using a gait belt correctly where the skill requires it
  • Supporting the limb or the resident properly
  • Leaving the call light within reach at the end
  • Leaving the bed at the lowest position

Those last two appear at the end of almost every skill, and they are where tired candidates lose marks — the task felt finished, so they stopped.

The steps that bracket every skill

Nearly every skill on every state's list begins and ends the same way. Learn these as a frame and drop the specific skill into the middle:

Before: knock and introduce yourself, identify the resident, explain what you are going to do, wash your hands, gather supplies, provide privacy, raise the bed to a safe working height.

After: make the resident comfortable, lower the bed to its lowest position, place the call light within reach, remove gloves and wash your hands, and report and record what you did and observed.

Candidates who internalise that frame stop losing critical steps almost immediately, because the frame is where most of them live.

Why people fail

In rough order of frequency:

  1. Missing a critical step while performing the skill correctly overall
  2. Rushing, because the timer is running and nerves are high
  3. Forgetting the call light or the bed height at the end
  4. Talking too little — many skills require you to explain to the resident, and evaluators cannot credit communication they did not hear
  5. Freezing on an unexpected skill
  6. Treating the manikin as an object — dignity steps still count

Notice that almost none of these are knowledge problems. This is an examination of habit, and habit is built by physical repetition rather than by reading.

How to prepare

For the written test: work through practice questions until the reasoning is automatic rather than recalled. Pay disproportionate attention to residents' rights and scope of practice, because those are where the "obviously helpful" answer is often the wrong one.

For the skills test:

  • Practise out loud, narrating each step as you would to a resident
  • Practise the frame — the before-and-after sequence — until it is reflex
  • Have somebody check you against the state's actual skill sheet, which is published
  • Practise on a person where you can, because talking to a manikin is a skill of its own
  • Slow down deliberately. Candidates who move slowly and complete every step pass; candidates who move fast and skip one do not

Get your state's candidate handbook and work from it. It lists the skills, the critical steps, the pass marks, the time limits and the retake rules. Everything general written about this exam — including this guide — is a summary of documents your state publishes precisely.

On the day

Practical things that reduce the number of ways the day can go wrong.

Arrive early, with the identification the handbook specifies. Candidates are turned away for the wrong ID more often than anyone expects.

Dress as you would for clinicals — scrubs, closed shoes, hair tied back, short clean nails, no jewellery on the hands. Some of this is scored, and all of it puts you in the right frame of mind.

Expect to be nervous and plan around it. Most candidates are. The evaluator has seen it and is not marking you on composure — but nerves cause rushing, and rushing causes skipped steps.

Narrate everything. Say what you are doing and why, to the resident and out loud. It slows you to a safer pace, it satisfies communication requirements, and it keeps you in sequence.

If you realise you missed a step, say so and correct it where the skill allows. A self-corrected step is usually better than an omitted one, and the handbook will tell you where that is permitted.

If you fail one part, you retake that part. It is not unusual and it is not the end of the process. Find out precisely which critical step you missed, practise it specifically, and go back.

What the exam is actually testing

Worth stepping back, because it reframes the preparation.

The skills demonstration is not assessing whether you can wash someone. It is assessing whether you will do it safely, hygienically and with dignity when nobody has time.

Every critical step maps to a real harm. Handwashing prevents infection moving between residents. The call light within reach is the difference between someone waiting five minutes and someone climbing out of bed unassisted. The bed at its lowest position is how a fall becomes a bruise instead of a fracture. Privacy is a resident's right, not a courtesy.

Candidates who understand that stop experiencing the critical steps as arbitrary hoops, which is precisely when they stop forgetting them.

The skills most often selected, in outline

Rehearsing everything is unrealistic. These recur across state lists and are worth being fluent in.

Handwashing. The most commonly assessed skill and embedded in every other one. Critical steps typically include wetting before soap, a specified duration of lathering including between fingers and under nails, rinsing with fingertips down, drying with a clean towel, and turning the tap off with a towel rather than clean hands.

Measuring blood pressure. Correct cuff placement and size, locating the pulse, and reporting the reading within an acceptable margin of the evaluator's.

Transferring to a wheelchair with a gait belt. Locking the wheels, positioning the chair, applying the belt correctly, supporting the resident, moving on a count.

Perineal care. Privacy, gloves, correct direction, changing gloves appropriately, dignity throughout.

Positioning on the side. Correct support with pillows, body alignment, not dragging the resident across the sheet.

Passive range of motion. Supporting the joint above and below, moving to the point of resistance and no further, and stopping if the resident reports pain.

Feeding assistance. Positioning upright, identifying the food to the person, appropriate pace, checking the mouth is clear before the next mouthful.

Measuring and recording output. Correct technique and accurate recording.

The pattern across all of them: privacy, gloves, support, dignity, and the closing steps. Learn the pattern and each individual skill becomes a short middle section between a familiar beginning and end.

Preparing without a partner

Not everybody has somebody willing to be practised on. The skills are still rehearsable.

Narrate through the whole sequence aloud, standing up, performing the movements on an empty bed or a chair. Saying it out loud is most of the benefit, because the exam requires you to speak and nerves suppress it.

Use a pillow or cushion as the resident for positioning and range-of-motion skills.

Set a timer and work against it, so the pace is not a surprise.

Record yourself and watch it back against the published skill sheet. Uncomfortable and extremely effective — you will see yourself skipping a step you were certain you performed.

Rehearse the frame separately from the skills, until the opening and closing sequences run without thought. That alone prevents most critical-step failures.

What this exam does not do on its own

Passing the competency evaluation is one requirement of becoming a CNA, not the whole of it. You must first complete a state-approved training programme including supervised clinical hours — a legal requirement, and the reason nobody can make you a CNA online.

The evaluation confirms what that programme taught. It does not replace it, and in most states you cannot sit it without having completed one.

Where our material fits

Exam preparation for the written portion, and nothing else.

That is a real use: the written test is knowledge-based and rehearsable, and practice questions genuinely help. It is also a narrow one, and we would rather define it clearly than let it imply more.

We cannot prepare you for the skills demonstration, because that requires performing physical care under observation. We cannot provide clinical hours. We are not a state-approved training programme, and our certificate is not a CNA certification — it records that you completed our study material and nothing further. The certification comes from your state, after a programme with clinicals, and there is no route around that for anybody selling anything.

Common questions

How many questions are on the CNA written exam?
It varies by state and testing provider, commonly in the region of sixty to a hundred multiple-choice questions. Your state's candidate handbook gives the exact number, the pass mark and the time allowed, and it is the document to work from rather than any general figure.
How many skills will I have to perform?
Usually several — often around five — selected randomly from the state's list, with handwashing very commonly included as one of them. You are told which at the time, and you are scored on performing each step correctly and in order.
What fails people most often?
Critical steps rather than knowledge. Missing handwashing, failing to leave the call light within reach, not lowering the bed, forgetting to provide privacy, or skipping a step in a sequence. Candidates who know the material fail on these because they rush.
Can I take the exam without completing a training programme?
Generally no. Federal requirements tie the competency evaluation to completion of an approved nurse aide training programme. Some states have limited challenge provisions for people with specific backgrounds, but they are exceptions with their own conditions rather than a general route.

Sources & review

Reviewed before publication · last reviewed 26 September 2026. Regulations change — where this guide names one, follow the link and read it. How we research, write and correct these: editorial policy. Found something wrong? Tell us.

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