California CNA study materials
California CNA study resources

California CNA key terms

California CNA · Get comfortable with the vocabulary.

Vital signs

Measurements of the body's basic functions: temperature, pulse, respirations, blood pressure, and often pain level or oxygen saturation. The CNA measures and records them and reports any value outside the resident's usual range.

Related: Intake and output
Intake and output (I&O)

A record of how much fluid a resident takes in by mouth, feeding tube, or IV and how much leaves the body as urine, vomit, or drainage. Careful measuring helps the care team spot dehydration or fluid overload.

Related: Vital signs, Dehydration
Range of motion (ROM)

Moving a joint through its normal directions of movement to keep muscles and joints flexible. Active ROM is done by the resident alone; passive ROM is done by the CNA when the resident cannot move the joint.

Related: Restorative care
Pressure injury

Damage to skin and underlying tissue caused by unrelieved pressure, usually over bony areas such as the sacrum, hips, or heels. Prevention includes turning and repositioning, keeping skin clean and dry, and good nutrition.

Related: Skin integrity, Range of motion (ROM)
Fowler's position

A semi-sitting position with the head of the bed raised about 45 to 60 degrees and the knees slightly bent. It makes breathing and eating easier and reduces pressure on the back.

Related: Aspiration
Activities of daily living (ADLs)

Everyday self-care tasks such as bathing, dressing, grooming, eating, toileting, and moving from place to place. CNAs assist with ADLs while encouraging each resident to do as much as possible independently.

Related: Person-centered care, Restorative care
Perineal care

Cleaning the genital and anal area, always wiping from front to back, to remove urine, stool, and odor and to help prevent infection. It is given during bathing and after toileting or incontinence care.

Related: Standard precautions, Hand hygiene
Complete bed bath

A bath given in bed to a resident who cannot bathe independently. The CNA washes the whole body in a planned order, changes the water as needed, dries the skin well, and checks for redness or breaks.

Related: Perineal care, Skin integrity
Oral care

Cleaning the mouth, teeth, gums, and dentures to remove food and plaque, keep the mouth comfortable, and prevent infection. Dependent residents need it at least twice daily and after meals.

Related: Complete bed bath
Skin integrity

The condition of skin that is intact and healthy. CNAs protect it by keeping skin clean, dry, and moisturized, avoiding friction and shearing, and reporting redness or open areas right away.

Related: Pressure injury, Complete bed bath
Resident rights

Freedoms protected by federal and state law, including dignity, privacy, choice, keeping personal possessions, having visitors, and being free from abuse. Staff must honor these rights and help residents exercise them.

Related: Informed consent, Right to refuse
Informed consent

A resident's voluntary agreement to care or treatment after being told its purpose, risks, benefits, and alternatives. Consent must be given freely, and the resident may withdraw it at any time.

Related: Right to refuse, Resident rights
Right to refuse

A resident's legal right to say no to any treatment, medication, food, or care task, even when staff believe it is needed. The refusal is respected, documented, and reported to the nurse.

Related: Informed consent, Resident rights
Abuse

Deliberate acts that harm a resident, such as hitting, yelling or threatening, unwanted sexual contact, stealing money, or forcing care. Any suspected abuse must be stopped and reported immediately.

Related: Mandated reporting, Resident rights
Mandated reporting

A legal duty of CNAs and other caregivers to report suspected abuse, neglect, or exploitation right away to the nurse in charge and to the proper outside agency. Failing to report can lead to penalties.

Related: Abuse, Incident report
Restraint

Any device or medication that limits a resident's freedom of movement and is not a usual part of treatment. Restraints need a doctor's order, must be the least restrictive option, and are used only to keep someone safe.

Related: Fall precautions, Resident rights
Fall precautions

Steps taken to lower the chance of falling, such as keeping the call light within reach, wiping spills at once, using non-skid footwear, keeping the bed low, and answering requests quickly.

Related: Call light, Incident report
Call light

The device a resident uses to signal staff for help. CNAs keep it within reach, answer it promptly, and never leave a resident who cannot move safely without it nearby.

Related: Fall precautions
RACE

A fire response sequence: Rescue anyone in danger, Alarm (pull the alarm and call), Contain the fire by closing doors, then Evacuate or Extinguish if it is safe. It reminds staff of the order of actions during a fire.

Related: Incident report
Seizure precautions

Measures that keep a resident safe during a seizure: clear the area, lower the bed, loosen tight clothing, protect the head, and stay with the person. Never hold the person down or put anything in the mouth.

Related: Aspiration, Fall precautions
Incident report

A factual written record of an unexpected event such as a fall, injury, or medication error, describing what happened and who was notified. It is used to improve safety and is not part of the resident's care record.

Related: Fall precautions, Mandated reporting
Standard precautions

Basic infection-control practices used with every resident: hand hygiene, gloves, gowns, masks, and eye protection when splashing is likely, plus careful handling of sharps, linens, and body fluids.

Related: Hand hygiene, Personal protective equipment (PPE), Transmission-based precautions
Hand hygiene

Cleaning the hands with soap and water or an alcohol-based rub. It is the single most effective way to prevent the spread of infection and is done before and after every resident contact.

Related: Standard precautions, Personal protective equipment (PPE)
Personal protective equipment (PPE)

Gloves, gowns, masks, goggles, and face shields worn to protect the CNA from blood and body fluids and to stop germs from passing to residents. It is removed carefully and disposed of properly.

Related: Standard precautions, Transmission-based precautions
Transmission-based precautions

Extra precautions used for certain infections that spread by contact (touching), droplet (spray from coughing or sneezing), or airborne (tiny floating particles). They are used along with standard precautions and stop when the infection is no longer contagious.

Related: Standard precautions, Chain of infection
Chain of infection

The series of steps a germ needs in order to spread: a germ, a place to live, a way out, a way to travel, a way in, and a person who can get sick. Breaking any one link stops infection.

Related: Hand hygiene, Standard precautions
Dysphagia

Difficulty swallowing. Signs include coughing or choking during meals, drooling, a wet or gurgling voice, or food staying in the mouth. CNAs report these signs and follow the prescribed safe-eating plan.

Related: Aspiration, Thickened liquids
Aspiration

Breathing food, liquid, saliva, or vomit into the lungs instead of swallowing it. It can cause choking and pneumonia. Prevention includes sitting upright, offering small bites, and going slowly when feeding.

Related: Dysphagia, Fowler's position
NPO

A doctor's order meaning nothing by mouth, so no food or fluids are given. The CNA keeps the resident's mouth comfortable with oral care and reports thirst or hunger to the nurse.

Related: Dehydration, Intake and output (I&O)
Thickened liquids

Drinks with a thickening product added so they move more slowly and are easier to swallow safely for a resident with dysphagia. The prescribed consistency must be followed exactly at every meal and snack.

Related: Dysphagia, Aspiration
Dehydration

Too little fluid in the body, causing thirst, dark urine, dry mouth, confusion, and weakness. CNAs offer fluids as allowed, track intake, and report these signs to the nurse promptly.

Related: Intake and output (I&O), NPO
Dementia

A lasting decline in memory and thinking that interferes with daily life, often caused by Alzheimer's disease. Residents may repeat questions, forget familiar people, or get lost. Calm, simple, consistent care helps.

Related: Delirium, Validation therapy, Sundowning
Delirium

A sudden change in attention and thinking, often with confusion, restlessness, or seeing things that are not there. Common causes are illness, new medication, pain, or dehydration. It is a medical emergency and must be reported at once.

Related: Dementia, Dehydration
Validation therapy

A way of responding that accepts and acknowledges the feelings behind a confused person's words instead of correcting the facts. It lowers distress and helps the resident feel understood and safe.

Related: Sundowning, Active listening
Sundowning

Increased confusion, restlessness, or agitation that appears in the late afternoon or evening, common in dementia. Calm routines, less noise, good lighting, and limited late naps may reduce it.

Related: Dementia, Validation therapy
Restorative care

Activities and exercises that help a resident regain or keep function lost through illness or disuse, such as walking, practicing dressing, or range of motion. It is done as ordered and builds independence.

Related: Range of motion (ROM), Activities of daily living (ADLs)
Therapeutic communication

Purposeful, respectful conversation that helps a resident express feelings and needs. It uses simple words, silence, and empathy, and avoids arguing, giving false reassurance, or changing the subject.

Related: Active listening, Open-ended question
Active listening

Giving full attention to a speaker, noticing body language and tone, and confirming understanding by nodding, asking brief questions, or repeating the message back in your own words.

Related: Therapeutic communication, Open-ended question
Open-ended question

A question that invites a full answer instead of a yes or no, often starting with 'tell me about' or 'how do you feel.' It helps the CNA learn more about a resident's concerns and preferences.

Related: Therapeutic communication, Active listening
Person-centered care

Basing care on each resident's preferences, routines, culture, and strengths rather than on staff convenience, and involving the resident in decisions about daily life and care.

Related: Activities of daily living (ADLs), Therapeutic communication, Resident rights