CNA Exam Study Guide: How to Pass the Written and Skills Test

The Certified Nursing Assistant (CNA) exam is a two-part test administered by state-approved testing organizations, typically Prometric or Pearson VUE depending on your state. It consists of a written (or oral) knowledge test and a hands-on clinical skills evaluation. Passing both parts earns you placement on your state’s Nurse Aide Registry, which is required to work as a CNA in a certified facility. This guide explains exactly what each section tests and how to study efficiently.

Understanding the CNA Exam Format

The written portion typically contains 60-70 multiple-choice questions, and most states require a score of 70% or higher to pass. Topics are drawn from the federal nurse aide training competency guidelines and include:

• Role and responsibilities of the nurse aide
• Resident rights and dignity
• Communication and interpersonal skills
• Basic nursing skills (vital signs, personal care, positioning)
• Safety and emergency procedures
• Infection control
• Mental health and social service needs
• Care of cognitively impaired residents
• Basic restorative services

The clinical skills test requires you to perform 5 randomly selected skills in front of an evaluator, typically within 30 minutes. Each skill is scored on a checklist of required steps, and you must pass all skills to receive a passing score on this portion.

Most Commonly Tested Written Topics

While every question matters, certain topics appear most often on CNA written exams:

• Infection control: Handwashing steps, standard precautions, transmission-based precautions (contact, droplet, airborne), and proper PPE selection. Handwashing is the single most important infection control measure, and many exam questions test this principle.
• Resident rights: Based on the Omnibus Budget Reconciliation Act (OBRA), residents have rights to privacy, dignity, self-determination, communication, and freedom from abuse or restraint.
• Safety and fall prevention: Proper body mechanics, use of assistive devices, bed positioning, side rail policies, and call light placement.
• Vital signs: Normal ranges for temperature, pulse, respirations, and blood pressure. Know when to report abnormal values immediately.
• Communication: How to interact with residents who have hearing loss, vision impairment, aphasia, or dementia.

High-Priority Clinical Skills to Practice

The five skills on your clinical exam are drawn from a state-approved pool. The most commonly selected skills include:

• Handwashing: Nearly always included. Steps must be performed in exact order with correct technique and duration (minimum 20 seconds).
• Vital signs measurement: Manual blood pressure, radial pulse, respirations, and sometimes temperature using various thermometer types.
• Positioning and transfers: Moving a resident up in bed, repositioning to lateral position, transferring to a wheelchair using a gait belt, and applying the gait belt correctly.
• Personal care skills: Oral hygiene, perineal care, partial bed bath, hair care, and nail care following proper dignity and privacy steps.
• Range of motion (ROM) exercises: Passive ROM for upper and lower extremities, supporting joints correctly, and stopping if pain is reported.

For every skill, the evaluator is checking not only that you perform the steps but also that you introduce yourself, explain the procedure to the resident, provide privacy, and perform hand hygiene before and after.

How to Study for the Written Test

A focused 2-4 week study plan is enough for most candidates who completed an approved CNA training program. Recommended approach:

1. Review your training program materials by module, focusing on sections where you felt least confident during class.
2. Use state-specific practice tests. Each state’s testing contractor (Prometric or Pearson VUE) publishes a candidate handbook with sample questions. Download yours from the official site.
3. Focus on infection control and resident rights as they appear in the highest proportion of questions across all states.
4. Create flashcards for vital sign normal ranges, abbreviations, and disease-specific care points (diabetes, stroke, dementia).
5. Take full-length timed practice tests in the week before your exam to simulate real testing conditions.

How to Prepare for the Skills Test

The skills test is where many candidates struggle because performing under observation creates pressure. Preparation strategies:

1. Practice every skill in the pool, not just the ones you find easy. You cannot predict which five will appear.
2. Verbalize as you work. Evaluators give credit for performed steps even when the step is verbal (such as explaining a procedure to the resident). Narrating your actions also helps you stay on track.
3. Use a mannequin or practice with a partner at least five times per skill. Muscle memory reduces nerves on test day.
4. Memorize the opening and closing sequence that applies to nearly every skill: knock and identify yourself, explain what you are about to do, ensure privacy, wash hands, don gloves if indicated, perform skill, ensure resident comfort, lower the bed, restore the call light within reach, wash hands, and report and record findings.
5. Review your state’s specific skills checklist. Some states include unique steps that differ from generic study materials.

What to Expect on Test Day

Arrive at the testing center at least 15-30 minutes early with two forms of ID and your authorization to test letter. During the written portion, read each question carefully and eliminate clearly wrong answers before choosing. If unsure, trust your training and avoid overthinking.

For the skills test, equipment and a skills evaluator will be provided. A mannequin or volunteer will serve as the resident. Treat this person exactly as you would a real resident: maintain dignity, explain each step, and keep them covered and comfortable throughout.

If you fail one or both sections, most states allow three total attempts before requiring additional training. Check your state’s specific retake policy in the candidate handbook. Many candidates who fail the first time pass on the second attempt after targeted review of the skills checklist.