CNA Study Guide — Master Every Topic

This is the largest domain on the CNA exam and covers the foundational clinical procedures you’ll perform daily. You need to know how to accurately measure and record all four vital signs: blood pressure (using a sphygmomanometer and stethoscope), pulse (radial and apical), respirations (counting without alerting the patient), and temperature (oral, tympanic, axillary, and rectal methods — know when each is appropriate). Understand normal ranges for adults: BP 120/80 mmHg, pulse 60–100 bpm, respirations 12–20 per minute, temperature 97.8–99.1°F. You must also know how to weigh patients accurately, position patients correctly (Fowler’s, Semi-Fowler’s, lateral, prone, supine), make occupied and unoccupied beds with proper technique, perform catheter care while maintaining sterile technique, collect specimens (urine, stool, sputum) without contamination, and accurately record intake and output. On the clinical skills exam, vital signs and bed making are among the most commonly tested skills. The key to passing: always wash hands before and after, identify your patient, explain what you’re doing, and provide privacy.

Infection control has become the second-largest domain on the CNA exam, especially after COVID-19 heightened awareness of infection prevention in healthcare settings. Hand hygiene is the single most important infection control measure — know when to wash (before and after every patient contact, before and after glove use, after touching contaminated surfaces, before eating) and how to wash properly (at least 20 seconds with soap and warm water, or alcohol-based hand sanitizer when hands aren’t visibly soiled). You must know the correct PPE donning order (gown → mask → goggles → gloves) and doffing order (gloves → goggles → gown → mask/respirator). Understand the difference between Standard Precautions (used with ALL patients — assumes all blood and body fluids are potentially infectious) and Transmission-Based Precautions: Contact (gown + gloves for MRSA, C. diff), Droplet (surgical mask for flu, COVID), and Airborne (N95 respirator for TB, measles). Know bloodborne pathogen safety including handling needlestick injuries and proper disposal of sharps. On the clinical skills exam, forgetting hand hygiene is the #1 reason candidates fail.

Activities of Daily Living represent the core of what CNAs do every day — helping patients with the basic self-care tasks they can’t perform independently. Bathing: know the difference between a complete bed bath, partial bath, tub bath, and shower; always check water temperature (105°F / 40.5°C for bathing), wash from cleanest to dirtiest areas, and provide privacy throughout. Dressing: assist with affected (weak) side first when putting on clothing, and remove from unaffected (strong) side first when undressing. Grooming: oral care (including denture care), hair care, shaving, and nail care (note: CNAs typically cannot trim toenails of diabetic patients). Feeding: position patient upright (at least 45–60 degrees), identify diet restrictions, offer small bites, and never rush — aspiration is a serious risk. Toileting: assist patients to the bathroom, bedpan, urinal, or commode while maintaining dignity and recording output when required. Mobility: safe transfer techniques using gait belts, proper body mechanics, and wheelchair positioning. The golden rule across all ADLs: promote patient independence whenever possible. Only provide the level of assistance the patient actually needs — this respects their dignity and supports their rehabilitation.

Patient rights form the ethical foundation of CNA practice, and this domain appears heavily on the exam. The Omnibus Budget Reconciliation Act (OBRA) of 1987 established federal standards for nursing homes, including mandatory CNA training and certification, resident rights protections, and quality standards. Every patient has the right to: be treated with dignity and respect, make decisions about their own care, privacy during personal care and medical treatments, keep personal belongings, be free from restraints (physical and chemical) unless medically necessary and ordered by a physician, access their medical records, file grievances without retaliation, and refuse treatment. Informed consent means patients must understand and agree to procedures before they’re performed — including being told what will happen, potential risks, and alternatives. Advance directives (living wills and healthcare power of attorney) document a patient’s wishes about end-of-life care when they can’t speak for themselves. As a CNA, you are a mandatory reporter — if you witness or suspect abuse (physical, emotional, sexual, financial), neglect, or exploitation, you must report it immediately to your charge nurse. Failure to report is both illegal and a violation of your certification. Cultural sensitivity means respecting patients’ cultural and religious practices related to food, modesty, family involvement, and spiritual care.

Safety is your top priority as a CNA, and this domain tests whether you can prevent harm and respond to emergencies. Fall prevention is critical — keep call lights within reach, bed in lowest position with wheels locked, clean up spills immediately, ensure adequate lighting, and use non-skid footwear. For fire safety, memorize two acronyms: RACE (Rescue patients, Activate alarm, Contain fire by closing doors, Extinguish or Evacuate) and PASS (Pull pin, Aim at base, Squeeze handle, Sweep side to side). For choking in a conscious adult, perform abdominal thrusts (Heimlich maneuver) — stand behind the patient, place your fist above the navel, and thrust inward and upward. During a seizure, never restrain the patient or put anything in their mouth — protect them from injury, turn them on their side, time the seizure, and call for help. Body mechanics: bend at your knees (not your waist), keep objects close to your body, maintain a wide base of support, and never twist while lifting. Gait belts are required for patient transfers — always secure the belt snugly around the patient’s waist and grip it from underneath. Restraints may only be used with a physician’s order, must be checked every 2 hours, and the patient must be released every 2 hours for repositioning and circulation checks.

Strong communication skills are essential for every CNA — both for patient care and exam success. Verbal communication should be clear, calm, and at an appropriate pace. Use simple language patients can understand, avoid medical jargon when speaking with patients, and always address patients by their preferred name. Nonverbal communication is equally important: maintain appropriate eye contact, use open body posture, pay attention to the patient’s facial expressions and body language, and be aware that your own nonverbal cues (crossed arms, rushed movements) send messages. Active listening means giving your full attention — face the patient, don’t interrupt, nod to show understanding, and repeat back key points to confirm comprehension. For patients with hearing impairments: face them directly, speak clearly (don’t shout), reduce background noise, and use written communication when needed. For patients with vision impairments: identify yourself when entering the room, describe what you’re doing, guide them by offering your arm rather than pushing them, and place items consistently so they can find them. Reporting: use objective language when reporting to nurses (describe what you see, not your interpretation). Documentation: if it wasn’t documented, it wasn’t done. Record accurately and promptly. Know common medical abbreviations like ADL, BID, PRN, NPO, VS, and I&O.

This domain covers the emotional and psychological aspects of patient care that are sometimes overlooked during study preparation. Maslow’s Hierarchy of Needs is frequently tested — understand the five levels from bottom to top: physiological (food, water, shelter), safety, love/belonging, esteem, and self-actualization. Always address lower-level needs first before higher-level ones. Caring for patients with dementia and Alzheimer’s requires patience, consistency, and specific techniques: maintain routines, use simple one-step instructions, don’t argue with confused patients, redirect rather than correct, and ensure a safe environment (remove tripping hazards, secure exits). Recognize signs of depression in patients: withdrawal, appetite changes, sleep disturbances, crying, and loss of interest in activities. Report these observations to the nurse — you are not expected to diagnose or treat, but you play a critical role in early identification. Support emotional needs by being present, listening without judgment, respecting privacy, and encouraging social interaction. End-of-life care focuses on comfort rather than cure — provide pain management support, maintain dignity, support religious and cultural practices, and recognize the stages of grief (denial, anger, bargaining, depression, acceptance as described by Kübler-Ross). Support the patient’s family members as well. Understand that dying patients have the right to choose their own level of care including the right to refuse treatment.