The CNA written or knowledge exam commonly checks whether a candidate understands safe nursing assistant care. It is not only vocabulary. Questions may ask what action protects a resident, what should be reported, or how to respond respectfully and safely.
For NNAAP/Credentia where applicable, the revised outline commonly uses a 70-question knowledge exam with 60 scored questions and 10 pretest questions, with a 2-hour testing window. Always confirm details with your state or testing provider.
Topics to review
- Safety, infection control, and emergency awareness.
- Resident rights, privacy, communication, and respectful care.
- Activities of daily living, mobility, nutrition, and elimination.
- Observation, reporting, documentation, and care-team communication.
Use the CNA Practice Test after each topic, then review the CNA skills test because written knowledge and practical care should support each other.
Verified against the official vendor reference: credentia.com.