2.1 The CNA Role, Scope & Delegation

Why Scope of Practice Matters

The Role of the Nurse Aide is roughly a quarter of the New Jersey written exam, and scope-of-practice questions appear in almost every domain of the test. Working strictly within your scope protects residents from harm and protects your place on the New Jersey Nurse Aide Registry. A single task performed outside your role — giving a medication, interpreting a lab value, inserting a catheter, or changing a care plan — can injure a resident and trigger a substantiated finding that revokes your certification.

A scope of practice is the legal boundary of what a certified or licensed person is permitted to do. For a New Jersey Certified Nursing Assistant (CNA), that boundary is set by the New Jersey Department of Health, the facility's policies, and the resident's individualized care plan. The exam repeatedly tests one idea: the CNA performs routine, hands-on supportive care and reports, while the licensed nurse exercises clinical judgment.

CNA Duties vs. Licensed Nurse Scope

A CNA provides hands-on supportive care under the direction of a Licensed Practical Nurse (LPN) or Registered Nurse (RN). The nurse owns clinical judgment; the CNA carries out delegated, routine tasks and reports what is observed.

The CNA collects data — for example, a temperature reading of 101.4°F. The nurse assesses — deciding that the temperature, combined with other findings, means a possible infection. Knowing exactly where that line falls is the single most tested concept in this domain. When a question offers an option where the CNA "decides," "determines," "adjusts," or "diagnoses," that option is almost always wrong.

Chain of Command

New Jersey long-term care facilities use a defined reporting structure called the chain of command: Physician/Medical Director → Director of Nursing → RN charge nurse → LPN → CNA. A CNA who is unsure, witnesses a problem, or disagrees with an assignment moves up this chain — never around it. For most floor concerns, the CNA reports to the licensed nurse assigned to that resident, who escalates further if needed. Going straight to a resident's family, a physician, or social media instead of the nurse is a common wrong answer on the exam.

Delegation and Accountability

Delegation is the transfer of a task from a licensed nurse to a CNA while the nurse keeps responsibility for the overall outcome. Before accepting a delegated task, confirm the Five Rights of Delegation:

1. Right task — a routine task within the CNA scope (not medication or assessment).
2. Right circumstance — appropriate for this resident's current condition.
3. Right person — you are trained and competent for it.
4. Right direction/communication — clear instructions, what to report back, and when.
5. Right supervision — the nurse is available to monitor and follow up.

Accountability is shared but not erased. The nurse is accountable for delegating appropriately; the CNA is personally accountable for performing the task correctly, within training, and for reporting results. If a task is outside your training, unsafe for that resident, or not on the care plan, you decline it and tell the nurse. Saying "I have not been trained to do that" is the safe, correct, and registry-protecting answer — it is not insubordination. A nurse cannot delegate a task the CNA is legally barred from doing (such as giving a medication); delegation never stretches scope.

Observing, Reporting, and Documenting

Because the CNA spends the most time at the bedside, the CNA is the facility's early-warning system. Report promptly any change: new confusion, skin breakdown, refusal to eat, a fall, a complaint of pain, shortness of breath, or unusual behavior. Both subjective complaints ("my chest hurts") and objective findings (blood pressure 90/50, a reddened heel) go to the licensed nurse without delay.

Document objective, factual observations using approved facility forms or the electronic health record. Chart only after care is given, only what you personally did or witnessed, and never for another aide. Correct errors per facility policy — a single line through the mistake, your initials, and the date — never erase, scribble out, or use white-out. The legal principle the exam loves: "if it was not documented, it was not done."

Objective vs. Subjective

The exam separates two kinds of information. Objective data is what you can measure or observe directly — a pulse of 88, a 2-inch reddened area, an untouched lunch tray. Subjective data is what the resident reports — "I feel dizzy," "my hip hurts." Chart objective findings as facts and record subjective statements in the resident's own words inside quotation marks. Never chart an opinion, a conclusion, or a diagnosis ("resident has a UTI"); that interpretation belongs to the nurse. When you report verbally, give the nurse both the objective measurement and any subjective complaint so the nurse can assess and act.