CNA study materials
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CNA key terms

CNA · Get comfortable with the vocabulary.

Scope of practice

The set of tasks and duties a nurse aide is legally allowed and trained to perform, such as bathing, feeding, and taking vital signs. Anything outside this list must be reported to a nurse.

Related: Chain of command, Mandatory reporting
Chain of command

The order of authority in a facility, showing who reports to whom. A nurse aide usually reports to a licensed nurse or charge nurse, who then reports to a supervisor or administrator.

Related: Scope of practice, Mandatory reporting
Informed consent

Permission a resident gives for care or treatment after the purpose, risks, and alternatives have been explained in words they understand. The nurse aide never obtains consent; they may witness a signature.

Related: Resident rights, Scope of practice
HIPAA

A federal law that protects a resident's private health information. Aides may share information only with the care team, never with friends, outside family without permission, or on social media.

Related: Confidentiality, Resident rights
Negligence

Failing to give the care a reasonable, trained aide would give in the same situation, which causes harm to a resident. Examples include leaving a call light out of reach or forgetting to lock a wheelchair.

Related: Abuse, Mandatory reporting
Abuse

Any intentional act that harms a resident, including hitting, yelling, mockery, ignoring, or stealing. Aides must report suspected abuse immediately, even if they are unsure whether it happened.

Related: Mandatory reporting, Negligence, Resident rights
Mandatory reporting

A legal duty of nurse aides to tell the nurse or proper authority about suspected abuse, neglect, or mistreatment right away. Failing to report can lead to losing certification and to criminal charges.

Related: Abuse, Negligence, Chain of command
Charting

Writing down the care given and what was observed during a shift, using objective facts and standard abbreviations. If it is not written in the record, legally it is treated as not done.

Related: Observation, Incident report
Incident report

A confidential form completed when something unexpected happens, such as a fall or a medication error. It records facts for the facility's safety review and is not part of the resident's progress notes.

Related: Charting, Negligence
Hand hygiene

Cleaning hands with soap and water or alcohol-based rub before and after resident contact, after removing gloves, and after touching body fluids. It is the single most effective way to prevent infection.

Related: Standard precautions, Chain of infection
Standard precautions

Infection control steps used with every resident every time, because anyone may carry germs. They include hand hygiene, gloves, gowns, masks, and safe handling of needles and body fluids.

Related: Hand hygiene, Personal protective equipment (PPE), Chain of infection
Personal protective equipment (PPE)

Gloves, gowns, masks, and eye protection worn to block contact with blood, body fluids, or airborne germs. It is put on before contact and removed carefully without touching the outside.

Related: Standard precautions, Hand hygiene
Chain of infection

The six steps germs need to spread: infectious agent, reservoir, exit, mode of transmission, entry, and susceptible host. Breaking any one link, such as with handwashing, stops infection.

Related: Hand hygiene, Standard precautions
Body mechanics

Using the body correctly to move or lift safely: feet apart, back straight, load close, and legs doing the work. Good body mechanics protects both the aide and the resident from injury.

Related: Gait belt, Range of motion (ROM)
Restraint

Any device or method, physical or chemical, that limits a resident's freedom of movement and is not used for routine care. Aides never apply restraints without an order and must check the resident often.

Related: Resident rights, Fall risk
Fall risk

The chance that a resident may fall, based on factors like confusion, weak legs, medications, and incontinence. High-risk residents need a clear path, a low bed, the call light in reach, and frequent checks.

Related: Body mechanics, Gait belt, Restraint
RACE (fire response)

A fire safety acronym: Rescue anyone in danger, Alarm, Contain the fire by closing doors, and Evacuate if told. Aides should know their facility's evacuation routes and never use elevators during a fire.

Activities of daily living (ADLs)

Everyday self-care tasks such as bathing, dressing, grooming, eating, and using the toilet. Aides help with these while encouraging residents to do whatever they can for themselves.

Related: Restorative care, Range of motion (ROM)
Gait belt

A wide strap fastened around a resident's waist that gives the aide a firm, safe hold while walking or transferring them. It is placed over clothing, never over bare skin or incisions.

Related: Body mechanics, Fall risk, Assistive device
Fowler's position

Sitting up in bed with the head of the bed raised between 45 and 90 degrees. It helps with breathing, eating, and talking, and should be used for residents who have trouble swallowing.

Related: Aspiration, Pressure injury
Perineal care

Cleaning the genital and anal area, always wiping from front to back to keep stool away from the urinary opening. It is done at least daily, after each bowel movement, and before catheter care.

Related: Standard precautions, Dignity
Intake and output (I&O)

A record of everything a resident drinks and of urine, vomit, stool, and drainage measured over a set period. Accurate measuring helps the nurse judge hydration and kidney function.

Related: Dehydration, Vital signs
Vital signs

Temperature, pulse, respirations, blood pressure, and often pain and oxygen saturation. Aides take and record them at scheduled times and report any result outside the resident's usual range.

Related: Observation, Intake and output (I&O)
Aspiration

Breathing food, liquid, saliva, or vomit into the airway instead of swallowing it. Signs include coughing, choking, a wet voice, or trouble breathing, and it must be reported immediately.

Related: Fowler's position, Dehydration
Dehydration

Not having enough fluid in the body, which can cause thirst, dark urine, dry mouth, confusion, and weakness. Older adults are at high risk, so aides offer fluids often and record intake.

Related: Intake and output (I&O), Aspiration
Therapeutic communication

Speaking with a resident in a calm, respectful way that encourages them to share feelings and choices. It uses open questions, silence, and restating rather than arguing or giving advice.

Related: Active listening, Empathy
Active listening

Giving full attention to a resident by facing them, making eye contact, nodding, and repeating back what you understood. It shows respect and helps the aide notice needs that were not spoken.

Related: Therapeutic communication, Observation
Resident rights

The legal freedoms every nursing home resident keeps, such as privacy, dignity, choice, visitors, personal belongings, and freedom from abuse. Aides protect these rights in every task they do.

Related: Dignity, Confidentiality, Informed consent
Confidentiality

Keeping a resident's personal and medical information private and sharing it only with the care team who needs it. It includes not discussing residents in hallways, elevators, or online.

Related: HIPAA, Resident rights
Dignity

Treating each resident as a valued person by covering them, knocking before entering, asking before touching, and respecting their wishes and belongings. It protects self-worth during care that can feel embarrassing.

Related: Resident rights, Perineal care, Empathy
Empathy

Trying to understand how a resident feels and showing that you care, without pretending to have had the same experience. It helps build trust and calms fear or anger.

Related: Active listening, Therapeutic communication, Dignity
Range of motion (ROM)

Moving a joint through its full, normal set of movements. Active ROM is done by the resident; passive ROM is done by the aide, gently, only as ordered, and never past the point of pain.

Related: Contracture, Restorative care, Body mechanics
Pressure injury

Damage to skin and tissue caused by constant pressure, usually over bony areas like the heels, hips, and tailbone. Aides prevent it by turning residents, keeping skin clean and dry, and checking skin daily.

Related: Contracture, Range of motion (ROM)
Contracture

A permanent shortening of muscle or tendon that pulls a joint into a bent position and limits movement. It is prevented by range of motion, proper positioning with pillows, and encouraging activity.

Related: Range of motion (ROM), Pressure injury
Assistive device

Equipment such as a cane, walker, crutch, or special utensil that helps a resident move or do tasks more independently. Aides check that it fits, is in good repair, and is placed within reach.

Related: Gait belt, Restorative care
Observation

Noticing and reporting changes in a resident's body, mood, eating, or behavior, using sight, hearing, touch, and smell. Findings are compared with what is normal for that resident and reported to the nurse.

Related: Charting, Vital signs
Restorative care

Daily care that helps a resident keep or regain skills and independence after illness, such as practicing walking, dressing, or eating. Aides follow the care plan and let residents do what they can.

Related: Activities of daily living (ADLs), Range of motion (ROM), Assistive device