Isaac Prentice
May 31, 2026
The certified nursing assistant credential opens the door to one of the most stable and rewarding careers in American healthcare. CNAs work in hospitals, skilled nursing facilities, rehabilitation centers, and home health settings, providing hands-on patient care under the supervision of registered nurses and physicians.
If you are ready to enter the healthcare field, CNA certification is one of the fastest and most respected pathways available. This guide explains exactly what the CNA exam involves, how to prepare for it, what you can earn, and how NCOOA’s online CNA prep course helps you get certified with confidence.
A CNA prep course is a structured training program that prepares students to pass the certified nursing assistant competency examination. These programs cover the clinical knowledge, patient care skills, and healthcare fundamentals required by state nursing aide registries. The National Caregiver Organization of America (NCOOA) offers a fully online CNA prep course designed to help students pass their state exam and launch a healthcare career.
A certified nursing assistant (CNA) is a trained healthcare professional who provides direct patient care under the supervision of a licensed nurse. CNAs are the frontline of patient care in most healthcare settings, and they perform more hands-on patient interaction than almost any other member of the clinical team.
CNAs assist patients with activities of daily living, monitor vital signs, report changes in patient condition, and support clinical procedures performed by nurses and physicians. Their work is essential to patient safety, comfort, and dignity.
According to the Bureau of Labor Statistics, more than 1.4 million CNAs are employed across the United States, and demand continues to grow as the population ages. To understand how the role fits into the broader healthcare workforce, read our guide on why direct care workers are critical.
Direct patient care
Clinical monitoring
Documentation and communication
Emotional and social support
Requirements vary by state, but all states follow the federal guidelines established by the Omnibus Budget Reconciliation Act (OBRA) for CNAs working in Medicare and Medicaid-certified facilities. For a full breakdown of what each state requires, see our guide on CNA exam requirements by state.
General eligibility requirements:
Training requirements:
The CNA competency exam is administered by state-approved testing organizations, most commonly Prometric or Pearson VUE depending on the state. The exam has two components:
Part 1: written knowledge test
A multiple-choice test covering healthcare fundamentals, patient rights, infection control, safety, communication, and basic clinical concepts. Most states have between 60 and 70 questions. You typically have 90 minutes to complete it.
Part 2: clinical skills evaluation
A hands-on evaluation where you are observed by a trained examiner while performing five randomly selected clinical skills from a standardized list. Common evaluated skills include handwashing, vital sign measurement, patient transfers, perineal care, and range of motion exercises.
Both parts must be passed separately. Students who fail one part may retake only the failed component in most states.
| Study pace | Hours per week | Estimated time to complete |
| Full-time | 25-30 hours | 3 to 5 weeks |
| Part-time | 12-15 hours | 6 to 8 weeks |
| Flexible/self-paced | 6-10 hours | 10 to 12 weeks |
Federal CMS guidelines require a minimum of 75 training hours. Many states require significantly more. California requires 150 hours. Most programs fall between 75 and 120 hours for the knowledge-based curriculum, plus supervised clinical skills practice.
For a full state-by-state breakdown, see our guide on how long CNA training takes.
The Bureau of Labor Statistics reports a national median wage of approximately $17.40 per hour for certified nursing assistants, with a median annual salary around $36,200. CNAs earn more than HHAs on average, reflecting the broader clinical scope of the role.
| State | Median hourly wage |
| Alaska | $22.00+ |
| Massachusetts | $21.50+ |
| Washington | $20.80+ |
| New York | $19.50+ |
| California | $19.00+ |
| Connecticut | $18.50+ |
| Oregon | $18.00+ |
| Minnesota | $17.50+ |
| Texas | $14.50-$15.50 |
| Georgia | $13.50-$14.50 |
For a complete salary breakdown by state, employer type, and specialization, see our guide on how much caregivers make in 2026.
| CNA | HHA | LPN | |
| Training length | 4-12 weeks | 4-8 weeks | 12-18 months |
| Work setting | Facility-based primarily | Home-based primarily | Facility and clinic |
| Clinical scope | Moderate | Limited | Broad |
| Avg. hourly pay | $16-$20 | $14-$18 | $25-$30 |
| Path to nursing | Direct bridge to RN | Bridge via CNA first | Bridge to RN available |
| NCOOA course | Yes | Yes | Not currently |
Not sure which path is right for you? Read our full comparison: CNA vs HHA vs PCA — what’s the difference?
The National Caregiver Organization of America offers a fully online CNA exam prep course designed to prepare students for both parts of the state competency exam. The program covers all core knowledge domains tested on state CNA exams and is built for working adults who need flexibility.
Students who complete NCOOA’s CNA prep course are equipped with the foundational knowledge needed to approach the written exam with confidence. Skills practice for the clinical evaluation is completed through an approved facility or employer after the coursework is finished.
Explore the full curriculum at NCOOA’s CNA exam prep course page. You can also browse all available caregiver certification programs to see how the CNA course fits alongside HHA, PCA, and DCW training options.
Clinical competencies:
Essential personal qualities:
For a deeper look at what employers look for, read our guide on top skills for patient care workers.
CNA certification is one of the most respected entry points into the nursing profession. Many of today’s registered nurses began their careers as CNAs, and the clinical experience gained in the role is genuinely valuable when entering nursing school.
Thinking about what it means to become a CNA in today’s healthcare system? Read our perspective on becoming a CNA in today’s medical landscape.
What is on the CNA exam?
The CNA exam has two parts: a written multiple-choice test and a clinical skills evaluation. The written test covers patient care, infection control, safety, communication, patient rights, and healthcare fundamentals. The skills eval tests five randomly selected hands-on procedures.
How long does it take to get CNA certified?
Most students complete training and pass their exam within 4 to 12 weeks. The timeline depends on your state’s required hours, your study schedule, and how quickly exam appointments are available in your area.
Can I take a CNA prep course online?
Yes. NCOOA’s CNA prep course is fully online and self-paced. The knowledge-based curriculum can be completed remotely. The clinical skills evaluation typically requires an in-person component, which is arranged after completing the online coursework.
How many times can I retake the CNA exam?
Most states allow students to retake the exam up to three times before requiring additional training. Policies vary by state, so check with your state’s testing authority for specific rules.
Does CNA certification expire?
Yes. CNA certifications must be renewed regularly, typically every one to two years depending on the state. Renewal requires documented work hours and continuing education. See our guide on CNA certification renewal for details.
What is the CNA registry?
The CNA registry is a state-maintained database of certified nursing assistants in good standing. Employers are required to verify registry status before hiring a CNA. Maintaining your active registry status is essential to employment.
CNA certification is your gateway to a stable, meaningful healthcare career with real room to grow. NCOOA’s online CNA prep course gives you everything you need to prepare for the exam and step confidently into the workforce.
>> Register for NCOOA’s CNA prep course today
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