1.1 Current Exam and Registry Facts
Key Takeaways
- Missouri CNA certification is registry eligibility through MOCNAR, not a portable national license.
- The current Missouri Headmaster knowledge exam has 75 multiple-choice questions, 60 minutes, and an 80% passing score.
- The current skills test assigns three or four tasks, allows 30 minutes, and requires every key step plus at least 80% on non-key steps for each task.
- Missouri renewal is electronic through TMU and requires at least 8 consecutive paid CNA nursing-service hours in the prior 24 months.
What Missouri Is Certifying
Missouri CNA certification is a state registry status. The Missouri Department of Health and Senior Services (DHSS) is the state authority, D&S Diversified Technologies - Headmaster is the testing and scoring vendor, TestMaster Universe (TMU) is the account and scheduling system, and the Missouri Certified Nurse Aide Registry (MOCNAR) is where an aide becomes eligible to work as a certified nurse aide in Missouri. Passing a class or being hired by a facility is not the same as being listed on MOCNAR.
The 2026 Missouri Nurse Aide Candidate Handbook describes the exam as two parts: a multiple-choice knowledge test and a skills test. Candidates must pass both parts and meet state and federal requirements before being identified and listed on the registry. This matters for exam questions because many traps ask what the candidate may do after only one step. A graduate who has finished training but has not passed both components is still moving through the certification path.
Current Exam Snapshot
| Item | Current Missouri fact |
|---|---|
| State authority | Missouri DHSS Health Education Unit and long-term care regulation framework |
| Testing vendor | D&S Diversified Technologies - Headmaster |
| Registry system | MOCNAR, accessed through Missouri TMU at mo.tmutest.com |
| Knowledge exam | 75 multiple-choice questions, computer-based at Missouri sites, 60 minutes |
| Knowledge passing score | 80% or better |
| Skills test | Three or four randomly selected tasks with scenarios |
| Skills time | 30 minutes, with a 15-minute remaining alert |
| Skills passing rule | No missed key steps and 80% or better on non-key steps for each assigned task |
| Current posted fee | DHSS FAQ lists $135 total: $32 knowledge and $103 skills |
| Audio or language options | Knowledge exam is available in English and Spanish; audio has an added fee and does not read the final reading-comprehension questions |
A Missouri candidate should therefore study two different performances. The knowledge exam rewards accurate decisions about safety, infection control, resident rights, role limits, personal care, and reporting. The skills test rewards doing the task in order, protecting privacy, using hand hygiene, correcting mistakes out loud, and completing the required critical actions.
The Knowledge Plan Is More Specific Than Five Broad Domains
Some local study materials group CNA topics into five broad buckets. The current Headmaster handbook gives a more precise Missouri test plan with twelve subject areas. Use the official plan for final review because the item counts reveal what the 75 questions actually sample.
| Subject area | Questions | How it shows up in practice |
|---|---|---|
| Safety | 9 | Falls, fire response, equipment, oxygen, emergency action |
| Basic Nursing Skills | 8 | Vitals, observation, positioning, intake/output, routine care facts |
| Infection Control | 8 | Standard precautions, hand hygiene, PPE, clean versus dirty technique |
| Personal Care | 8 | Bathing, grooming, dressing, toileting, feeding, skin protection |
| Communication | 6 | Resident-centered language, team reporting, hearing or speech barriers |
| Disease Process | 6 | Recognizing changes, chronic conditions, when to report |
| Mental Health | 6 | Behavior, anxiety, depression, dementia-related responses |
| Aging Process and Restorative Care | 5 | Independence, range of motion, assistive devices, function maintenance |
| Care Impaired | 5 | Adapting care for physical or cognitive limitations |
| Resident Rights | 5 | Privacy, choice, refusal, dignity, grievances, freedom from abuse |
| Role and Responsibility | 5 | Scope, delegation, chain of command, documentation boundaries |
| Data Collection | 4 | Measuring, recording, routing information to the nurse |
The table prevents a common Missouri trap: overstudying only the hands-on checklist and underpreparing the role, rights, and reporting decisions that appear across the written exam. A question about a resident who refuses a shower may test communication, resident rights, and role responsibility at the same time. The correct CNA action is not to force the shower or chart that the resident was difficult; it is to respect the refusal, offer reasonable alternatives, protect immediate safety, and report the refusal according to facility procedure.
Registry Facts That Affect Real Work
MOCNAR is not just a score report. It lists certified nurse aides who meet training, testing, and experience requirements, and it can also show disqualifying information such as Employee Disqualification List status or a federal indicator connected to abuse, neglect, or misappropriation findings. Employers and candidates use registry status to verify whether the aide is eligible for CNA work.
Once listed, the aide must maintain demographic information and renewal eligibility through TMU. The handbook says renewal notices are sent by email and text rather than postal mail, so a stale phone number or email can become a practical renewal problem. To renew, a Missouri CNA must have at least 8 consecutive hours of paid work as a CNA performing nursing or nursing-related services during the previous 24 months. Work that is unrelated to nursing service may be denied for renewal.
Missouri Scenario Traps
- A candidate says, "I passed the written exam, so I am certified." That is incomplete. Missouri requires both the knowledge and skills portions before registry listing.
- A classmate uses an old guide showing a 120-minute written exam. The current 2026 Headmaster handbook uses 60 minutes for 75 multiple-choice questions.
- A candidate schedules a same-day event but arrives without matching government photo ID or proper testing attire. Missouri testing policy treats that as an admission problem, not a content question.
- A CNA worked eight paid hours in a warehouse during the renewal cycle. That does not satisfy the renewal rule because the hours must be CNA nursing or nursing-related services.
The exam rewards candidates who can separate a training fact, a test-day fact, and a registry fact. Training makes the candidate eligible to test, Headmaster scores the knowledge and skills components, and MOCNAR is the official Missouri work-eligibility record.
A Missouri CNA candidate is using a study sheet that says the written exam is 120 minutes long. What should the candidate rely on for current test pacing?
Which statement best describes when a Missouri nurse aide candidate becomes listed as a CNA on MOCNAR?
A Missouri CNA is renewing and uploads proof of 8 paid hours as a retail cashier during the prior 24 months. What is the most likely problem?