← CNA Exam: Safety & Emergencies

CNA Certified Nursing Assistant Exam Study Guide

Key concepts, definitions, and exam tips organized by topic.

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CNA Exam Study Guide: Safety & Emergencies


Overview

This study guide covers the essential safety and emergency competencies tested on the CNA exam, including fall prevention, fire safety, restraint use, emergency response, and infection control. CNAs are on the front lines of patient safety, making these concepts critical for both the exam and daily practice. Mastery of these topics protects patients, protects the CNA, and meets federal and state regulatory requirements.


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Fall Prevention


Key Concepts

Fall prevention is one of the most tested CNA safety topics. The CNA's role is to identify fall risk, implement preventive measures, and respond safely if a fall occurs.


If a fall is happening:

  • • Never try to catch the patient upright — this injures both patient and CNA
  • • Guide the patient slowly and safely to the floor, protecting the head
  • • Call for help after the patient is safe

    • Environmental safety measures:

  • • Bed in the lowest position with wheels locked
  • • Call light always within reach
  • • Bed/chair exit alarms activated for high-risk patients
  • • Remove clutter and ensure adequate lighting

    • Visual identification:

  • • Yellow wristband or yellow socks = patient is at HIGH risk for falls
  • • Alerts all staff to use extra precautions

    • Key Terms

  • • Fall risk assessment — formal tool to identify patients likely to fall
  • • Exit alarm — device that alerts staff when a high-risk patient attempts to stand unassisted
  • • Lowest bed position — safest bed height to minimize injury if a fall occurs

    • Watch Out For

    > ⚠️ Common Pitfall: On the exam, you may be tempted to grab a falling patient to keep them upright. The correct answer is always to guide them to the floor — trying to stop the fall causes injury to both patient and CNA.


    > ⚠️ Common Pitfall: Side rails are not a fall prevention tool — they can actually increase fall risk if patients climb over them.


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    Fire Safety


    Key Concepts

    In a fire emergency, CNAs must act in a specific, prioritized order. Two acronyms are essential.


    RACE — Priority Order During a Fire


    | Letter | Action | Details |

    |--------|--------|---------|

    | R | Rescue | Remove patients in immediate danger first |

    | A | Alarm | Activate the fire alarm / call for help |

    | C | Contain/Confine | Close doors to slow smoke and fire spread |

    | E | Extinguish/Evacuate | Use extinguisher if safe; evacuate otherwise |


    PASS — How to Use a Fire Extinguisher


    | Letter | Action |

    |--------|--------|

    | P | Pull the pin |

    | A | Aim at the base of the fire |

    | S | Squeeze the handle |

    | S | Sweep side to side |


    Evacuation priority:

    1. Patients in immediate danger (same room, closest to fire) — moved first

    2. Ambulatory patients assisted out before non-ambulatory

    3. Non-ambulatory patients moved last with maximum assistance


    Door closure: Closing patient room doors is critical — it contains fire and smoke, buying evacuation time (Contain phase of RACE).


    Key Terms

  • • RACE — rescue, alarm, contain, extinguish/evacuate
  • • PASS — pull, aim, squeeze, sweep
  • • Horizontal evacuation — moving patients to a safe zone on the same floor (preferred over stairs)

    • Watch Out For

    > ⚠️ Common Pitfall: The exam may ask about evacuation order. Remember: patients in immediate danger FIRST, not the ones who are easiest to move.


    > ⚠️ Common Pitfall: Never aim a fire extinguisher at the flames — always aim at the base of the fire.


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    Restraints & Restraint Alternatives


    Key Concepts

    Restraints are strictly regulated and represent a last resort only. The CNA must understand both the rules for safe restraint use and the alternatives that must be tried first.


    Before applying a restraint:

  • • All alternatives must be tried and documented
  • • A physician's order is required
  • • Consent must be obtained

    • Monitoring requirements:

  • • Check restrained patients every 15–30 minutes
  • • Assess: circulation, breathing, skin condition
  • • Offer repositioning, toileting, and range of motion regularly

    • Safe restraint application:

  • • Tie straps to the movable part of the bed frame
  • • Never tie to side rails — lowering the rail can injure the patient
  • • Always use a quick-release knot

    • Restraint Alternatives (Try These First)


    | Alternative | Purpose |

    |-------------|---------|

    | Frequent toileting schedule | Reduces restlessness from urge to void |

    | Rocking chair | Provides safe movement outlet |

    | Bed/chair alarms | Alerts staff before patient rises |

    | Family member presence | Provides comfort and supervision |

    | Soft lighting, familiar music | Reduces agitation/confusion |


    Key Terms

  • • Physical restraint — any manual method or device that restricts a patient's freedom of movement
  • • Quick-release knot — knot that can be untied rapidly in an emergency
  • • Least restrictive alternative — the principle that the minimum level of restriction necessary should always be used

    • Watch Out For

    > ⚠️ Common Pitfall: Never tie restraints to side rails. Exam questions specifically test this — the correct answer is always the movable bed frame.


    > ⚠️ Common Pitfall: Restraints do not replace monitoring. A restrained patient requires MORE frequent checks, not fewer.


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    Emergency Response


    Unresponsive Patient

    1. Attempt to awaken — call name, tap shoulder

    2. Call for help — activate emergency response / call 911 or facility code

    3. Begin CPR if no pulse/breathing


    CPR — Adult Guidelines (AHA)

  • • Ratio: 30 compressions : 2 rescue breaths
  • • Depth: At least 2 inches
  • • Rate: 100–120 compressions per minute
  • • Allow full chest recoil between compressions

    • Choking — Heimlich Maneuver

    When to act: Patient cannot speak, cough, or breathe

  • • Stand behind the patient
  • • Make a fist above the navel (below the breastbone)
  • • Deliver firm upward thrusts until obstruction clears or patient becomes unconscious
  • • If patient becomes unconscious → begin CPR and look for object in mouth before giving breaths

    • Seizures — Response Protocol


    During a seizure:

  • • Protect from injury (clear area, pad hard surfaces)
  • • Never restrain a seizing patient
  • • Never put anything in the mouth
  • • Position on side (recovery position) if possible

    • PASS for Seizure Response (Post-ictal):

    | Letter | Action |

    |--------|--------|

    | P | Protect patient from injury |

    | A | Position on Side (recovery position) |

    | S | Stay with the patient |

    | S | Summon help (call for nurse) |


    Stroke Recognition — FAST


    | Letter | Sign |

    |--------|------|

    | F | Face drooping (uneven smile) |

    | A | Arm weakness (one arm drifts down) |

    | S | Speech difficulty (slurred or strange) |

    | T | Time to call for help immediately |


    Additional stroke signs: sudden confusion, vision changes, severe headache, loss of balance


    Hypoglycemia (Low Blood Sugar)

  • • Critical value: Blood glucose below 70 mg/dL (52 mg/dL = emergency)
  • • If patient is alert and can swallow:

    • - Report to nurse immediately

    - Nurse may direct CNA to give 15g fast-acting carbohydrates (juice, glucose tablets)

  • • If patient is unconscious: Do NOT give anything by mouth — call for help immediately

    • Key Terms

  • • Heimlich maneuver — abdominal thrusts to clear airway obstruction
  • • Post-ictal phase — recovery period after a seizure; patient may be confused and fatigued
  • • Hypoglycemia — blood glucose below 70 mg/dL; life-threatening if untreated
  • • FAST — face, arm, speech, time (stroke recognition tool)

    • Watch Out For

    > ⚠️ Common Pitfall: The CNA should never leave an unresponsive patient alone — call for help first by shouting or using the call system, then begin assessment.


    > ⚠️ Common Pitfall: For seizures, the instinct may be to restrain the patient. The exam will always mark this wrong. Also, never insert objects into the mouth.


    > ⚠️ Common Pitfall: For hypoglycemia, the CNA does NOT independently decide to give juice — this requires nurse direction and an alert, swallowing-capable patient.


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    Infection Control & Standard Precautions


    Key Concepts

    Hand hygiene is the single most important infection control measure. It is tested repeatedly on the CNA exam.


    Hand Hygiene Rules


    | Situation | Method |

    |-----------|--------|

    | Hands visibly soiled | Soap and water ONLY |

    | After C. difficile contact | Soap and water ONLY (alcohol does NOT kill C. diff spores) |

    | Routine care, no visible soil | Alcohol-based sanitizer acceptable |


    PPE — Donning Order (Putting On)

    Remember: "Gown, Mask, Eyes, Gloves"


    1. Gown — first

    2. Mask or respirator — second

    3. Goggles or face shield — third

    4. Gloves — last


    PPE — Doffing Order (Taking Off)

    Remove most contaminated items first


    1. Gloves — first (most contaminated)

    2. Goggles/face shield — second

    3. Gown — third

    4. Mask/respirator — last


    Transmission-Based Precautions


    | Type | PPE Required | Examples |

    |------|-------------|---------|

    | Contact | Gown + Gloves | MRSA, VRE, C. diff, wound infections |

    | Droplet | Surgical mask | Influenza, COVID-19, meningitis |

    | Airborne | N-95 respirator + negative pressure room | TB, measles, chickenpox |


    Key rule for Contact Precautions: Minimize patient transport; cover patient if transport is necessary.


    Key rule for Airborne Precautions (TB): Must use N-95 respirator — a standard surgical mask is NOT sufficient.


    Needlestick Injury Protocol

    1. Immediately wash puncture site with soap and water

    2. Report to supervisor

    3. Complete incident documentation

    4. Follow facility exposure control protocol (blood testing, possible prophylaxis)


    Key Terms

  • • Standard precautions — used with ALL patients regardless of diagnosis; treat all blood/body fluids as potentially infectious
  • • Transmission-based precautions — additional precautions layered on top of standard precautions for specific infections
  • • N-95 respirator — tight-fitting mask that filters airborne particles; required for TB
  • • Negative pressure room — room where air flows inward to prevent airborne pathogens from escaping
  • • C. difficile (C. diff) — spore-forming bacteria; requires soap and water, not alcohol hand sanitizer

    • Watch Out For

    > ⚠️ Common Pitfall: A surgical mask is NOT adequate for TB — the exam specifically tests that an N-95 respirator is required.


    > ⚠️ Common Pitfall: Alcohol-based sanitizer is effective for most pathogens except C. diff spores. Soap and water must be used after C. diff contact.


    > ⚠️ Common Pitfall: The donning order (gown first, gloves last) and doffing order (gloves first, mask last) are both commonly tested. Know both sequences.


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    Quick Review Checklist


    Use this checklist before your exam to confirm mastery:


    Fall Prevention

  • • [ ] Know to guide a falling patient to the floor, never catch them upright
  • • [ ] Bed in lowest position with locked wheels for fall-risk patients
  • • [ ] Yellow wristband/socks = high fall risk
  • • [ ] Call light must always be within patient reach

    • Fire Safety

  • • [ ] Can recite RACE in order: Rescue → Alarm → Contain → Extinguish/Evacuate
  • • [ ] Can recite PASS in order: Pull → Aim (base) → Squeeze → Sweep
  • • [ ] Know that patients in immediate danger are evacuated first

    • Restraints

  • • [ ] Restraints require a physician's order and are a last resort
  • • [ ] Check restrained patients every 15–30 minutes
  • • [ ] Tie to movable bed frame, never to side rails; use quick-release knot
  • • [ ] Know at least 4 restraint alternatives

    • Emergency Response

  • • [ ] Adult CPR ratio: 30:2 compressions to breaths, 2 inches deep, 100–120/min
  • • [ ] Heimlich = fist above navel, firm upward thrusts
  • • [ ] Seizure: protect, side position, stay, summon help — never restrain or insert objects in mouth
  • • [ ] Stroke = FAST (Face, Arm, Speech, Time)
  • • [ ] Hypoglycemia = report to nurse immediately; only give carbs if patient is alert and can swallow

    • Infection Control

  • • [ ] Hand hygiene is the #1 infection control measure
  • • [ ] Soap and water required for C. diff and visibly soiled hands
  • • [ ] Donning PPE order: Gown → Mask → Eyes → Gloves
  • • [ ] Airborne precautions for TB require N-95 respirator + negative pressure room
  • • [ ] Contact precautions require gown + gloves (MRSA, C. diff, VRE)
  • • [ ] Needlestick: wash immediately with soap and water, then report

    • ---


    Review this guide alongside practice questions. Focus especially on the "Watch Out For" sections — these represent the most common reasons CNA candidates lose points on safety and emergency questions.

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