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April 1, 2026

How to Pass the CNA Exam on Your First Try

A step-by-step guide to passing the NNAAP written exam — what to study, how long to prepare, and the most common mistakes to avoid.

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What Is the CNA Exam?

The CNA exam — formally known as the NNAAP (Nurse Aide Assessment Program) — is the licensing exam required to become a Certified Nursing Assistant in the United States. It has two parts: a written (or oral) knowledge test and a clinical skills evaluation. This guide focuses on the written test. The written exam consists of 70 multiple-choice questions. You have 90 minutes to complete it. To pass, you need to score at least 70% — correctly answering at least 49 of the 70 questions.

What Topics Are on the Exam?

The NNAAP written exam covers six content areas, each weighted differently: • Physical Care Skills — 45% of the exam. This is the largest section and covers personal hygiene, bathing, grooming, feeding, elimination care, positioning, transfers, and mobility. • Safety & Emergency Procedures — 14%. Fire safety (RACE protocol), fall prevention, restraint alternatives, and emergency response. • Infection Control — 14%. Handwashing technique, standard precautions, PPE donning and doffing order, and isolation precautions. • Resident Rights — 11%. OBRA regulations, privacy, dignity, the right to refuse care, and recognizing and reporting abuse and neglect. • Psychosocial Care Skills — 8%. Therapeutic communication, dementia and depression care, cultural sensitivity, and end-of-life support. • Role of the Nurse Aide — 8%. Scope of practice, chain of command, documentation, and legal and ethical responsibilities. Because Physical Care Skills makes up nearly half the exam, it deserves the most study time.

How Long Should You Study?

Most students who pass on their first attempt spend 2–4 weeks preparing consistently. Here is a realistic study schedule: • Week 1: Physical Care Skills. Spend time on bathing, oral care, positioning and transfers, and elimination care. These topics alone can account for 30+ questions. • Week 2: Infection Control and Safety. Master hand hygiene, PPE order, RACE, and fall prevention. These are heavily tested and very specific. • Week 3: Resident Rights, Psychosocial Care, and Role of the Nurse Aide. These sections are smaller but require careful reading — the answers are nuanced. • Week 4 (if time allows): Full practice tests. Simulate real exam conditions. Review every question you get wrong and read the explanation.

The Most Common Mistakes

Students who fail the CNA exam on their first attempt typically make one of these mistakes: 1. Skipping Physical Care Skills. Because the questions seem straightforward, students underestimate how specific the exam gets. The correct order of steps matters. 2. Memorizing answers instead of understanding concepts. The exam changes question wording. If you understand why the correct answer is right, you can handle any phrasing. 3. Not reviewing answer explanations. Getting a practice question right does not mean you know why it is right. Always read the explanation. 4. Running out of time. 90 minutes for 70 questions is about 77 seconds per question. Practice pacing. Do not spend more than 2 minutes on any single question — flag it and come back. 5. Overthinking. CNA exam questions are written to test what a nurse aide should do first, not what a nurse or doctor would do. When in doubt, choose the answer that prioritizes safety and resident dignity.

How to Use Practice Tests Effectively

Practice tests are the single most effective study tool for the NNAAP exam. Here is how to use them: • Take a full 70-question test in one sitting before you start studying. This diagnostic helps you see which topics you already understand and which need the most work. • After each test, review every question — not just the ones you got wrong. Understanding why a correct answer is correct is as important as knowing why wrong answers are wrong. • Do not memorize questions. The real exam will not use the same wording. Focus on the underlying concept. • Aim for 80% or higher on practice tests before you sit for the real exam. You want a buffer above the 70% passing threshold. CertPrepAcademy.com offers a free 70-question practice test that mirrors the real NNAAP format — same number of questions, same topic distribution, with detailed explanations for every answer.

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