CNA classes teach you how to provide basic, hands-on care to patients in nursing homes, hospitals, and other healthcare settings. The program covers everything from taking vital signs and helping patients move safely to preventing infections and protecting patient privacy. Most programs run between 75 and 180 hours total, split between classroom instruction and supervised clinical practice in a real care facility.
How Long CNA Training Takes
The federal minimum for CNA training is 75 hours, but most states require significantly more. California and Delaware require 150 hours. Maine has the highest requirement at 180 hours. States like Florida, Illinois, Virginia, and Wisconsin require 120 hours, while Texas, New York, and Connecticut require 100 hours. A large chunk of that time is spent in clinical practice. California, for example, requires at least 100 hours of hands-on clinical work in a skilled nursing or intermediate care facility, with no more than 15 students per instructor at any time.
Programs are offered through community colleges, vocational schools, nursing homes, and some hospitals. Depending on the format, you can finish in as little as four weeks for a full-time program or spread it over several months in an evening or weekend schedule.
Vital Signs and Measurements
One of the first practical skills you’ll learn is how to measure and record vital signs. This includes four core measurements that you’ll perform repeatedly throughout your career.
Blood pressure is measured using either a manual cuff with a stethoscope or a digital monitor. You’ll learn what the two numbers mean: the top number (systolic) reflects pressure when the heart beats, and the bottom number (diastolic) reflects pressure between beats. Normal is below 120/80. Readings of 130/80 or higher indicate high blood pressure.
Pulse is typically taken at the wrist by pressing your first two fingers on the artery and counting beats for 60 seconds. A normal resting pulse for adults falls between 60 and 100 beats per minute. You’ll practice counting accurately and recognizing when a rhythm feels irregular.
Respiration rate is measured by watching the chest rise and counting breaths for one minute. Normal for an adult at rest is 12 to 16 breaths per minute. You’ll learn to do this without telling the patient, since people tend to change their breathing pattern when they know they’re being watched.
Body temperature can be taken orally, under the arm, in the ear, or rectally. Normal ranges from about 97.8°F to 99°F. A reading below 95°F counts as hypothermia. You’ll also learn to measure and record a patient’s weight and urinary output.
Infection Prevention
Infection control gets heavy emphasis in CNA training because nursing assistants have constant physical contact with patients. The curriculum covers what’s called the “chain of infection,” meaning the steps a germ takes to move from one person to another, and how to break that chain at every point.
Hand hygiene is the single most tested skill. You’ll learn the specific technique for washing hands with soap and water, as well as when alcohol-based hand rubs are appropriate. Beyond handwashing, you’ll practice putting on and removing personal protective equipment (gowns, gloves, masks, and face shields) in the correct order. Removing PPE incorrectly is one of the most common ways healthcare workers accidentally contaminate themselves, so you’ll drill this sequence multiple times. The training also covers isolation procedures for patients with contagious conditions and basic principles of keeping care environments clean.
Patient Care and Daily Living Skills
The bulk of CNA training focuses on helping patients with activities they can no longer do independently. These are the skills you’ll be tested on for certification, and they cover nearly every aspect of daily life.
- Bathing and hygiene: giving a bed bath (washing the face, arms, hands, and underarms for patients who can’t get up), providing mouth care, cleaning dentures, and performing perineal care.
- Feeding: safely feeding patients who cannot feed themselves, including proper positioning and pace to reduce choking risk.
- Dressing: helping patients get dressed, with specific techniques for those who have weakness on one side of the body. You learn to dress the weak side first and undress it last.
- Toileting: assisting with bedpan use, catheter care, and measuring urinary output.
- Skin and foot care: inspecting skin for early signs of pressure sores, providing foot care, and applying compression stockings to prevent blood clots.
These skills might sound straightforward, but each one has a precise procedure you must follow. During the certification exam, you’ll be observed performing several of these tasks on a volunteer or mannequin, and you’ll be graded on every step, including whether you explain what you’re doing to the patient and whether you maintain their privacy throughout.
Body Mechanics and Safe Transfers
Moving patients is one of the most physically demanding parts of the job and one of the leading causes of injury for nursing assistants. CNA classes dedicate significant time to body mechanics, meaning how to use your own body safely when lifting, turning, or repositioning someone.
The core principles: keep your back straight, bend at the knees, hold the patient close to your body, and never twist your spine. The safest lifting zone is between your knees and elbows. Instead of pulling with your arms, you shift your body weight, using your legs to do the heavy work.
You’ll practice specific transfer techniques, like moving a patient from bed to wheelchair using a gait belt (a sturdy strap that goes around the patient’s waist for a secure grip). The patient scoots to the edge of the bed, you hold them around the waist or hips, and you rock back while straightening your legs to bring them to standing. You’ll also learn to roll patients onto their side for repositioning, always rolling them toward you and holding at the hip and shoulder blade rather than pulling on arms or legs. Draw sheets placed under the patient help with repositioning in bed without dragging.
Range of motion exercises are another key skill. You’ll learn to gently move a patient’s joints, including knees, ankles, and shoulders, through their full range of movement to prevent stiffness and maintain mobility in patients who are bedridden or have limited movement.
Patient Rights and Privacy Laws
CNA classes cover the legal and ethical framework you’ll work within, with particular focus on HIPAA (the federal health privacy law) and patient dignity.
Protected health information includes anything that could identify a patient linked with their medical details: their name, room number, address, family members’ names, medications, or health history. The “minimum necessary” rule means you only access or share the smallest amount of information needed to do your job safely. Common violations that CNAs get in trouble for include talking about a patient in another patient’s room, leaving charts on countertops, storing patient information on a personal phone, sharing login credentials for electronic health records, and posting anything about patients on social media, even without using their names.
The training also covers abuse prevention and your obligation as a mandatory reporter. If you witness or suspect abuse, neglect, or exploitation of a patient, you’re legally required to report it. You’ll learn the chain of command for reporting, including options for reporting anonymously if the person involved is your supervisor.
Emergency Response Basics
CNA programs teach basic emergency procedures so you can respond in the critical minutes before a nurse or doctor arrives. This typically includes choking response and basic life support.
For a choking adult who can’t speak, cough, or breathe, you alternate between five firm back blows between the shoulder blades and five abdominal thrusts (the Heimlich maneuver) until the object is dislodged. For infants, the technique is different: you hold the baby facedown on your forearm with the head lower than the body and deliver five gentle but firm thumps to the middle of the back. Many programs include CPR certification or cover the fundamentals of when and how to begin chest compressions and rescue breathing.
You’ll also learn how to recognize signs of common emergencies like falls, seizures, and sudden changes in a patient’s condition, and what to document and report to the nursing staff.
What the Certification Exam Looks Like
After completing your training program, you take a state certification exam with two parts: a written (or oral) knowledge test and a clinical skills evaluation. The written portion covers the classroom material, including infection control, patient rights, safety, and basic anatomy. The skills portion requires you to correctly demonstrate a handful of randomly selected procedures from the full skills checklist, typically five to seven tasks, in front of an evaluator. You’re scored on accuracy, safety, and whether you communicate with and respect the patient throughout. Most states give you three attempts to pass before requiring additional training.