❤️‍🩹First Aid Unit 3 – CPR and AED: Life-Saving Techniques

CPR and AED are crucial life-saving techniques used when someone's breathing or heartbeat stops. These methods involve chest compressions and electric shocks to keep blood flowing and restore normal heart rhythm, greatly increasing survival chances in cardiac arrest. Learning CPR and AED skills empowers anyone to potentially save a life. Quick action is vital, as brain damage can occur within minutes without blood flow. Performing CPR can double or triple survival rates, while using an AED within minutes can increase survival up to 90%.

What's CPR and AED?

  • CPR stands for Cardiopulmonary Resuscitation, a life-saving technique used when someone's breathing or heartbeat has stopped
  • Involves chest compressions to keep blood flowing to the brain and other vital organs until further treatment can be given
  • AED is an Automated External Defibrillator, a portable device that checks heart rhythm and can send an electric shock to the heart to restore normal rhythm
    • Used in cases of sudden cardiac arrest (heart suddenly stops beating)
  • Both CPR and AED are crucial emergency procedures that can greatly increase the chance of survival for a person in cardiac arrest
  • CPR and AED are often used together as part of the "chain of survival" in emergency cardiac care
  • Knowing how to perform CPR and use an AED can make the difference between life and death in an emergency situation
  • CPR and AED skills are valuable for anyone to learn, not just medical professionals

Why CPR and AED Matter

  • Cardiac arrest is a leading cause of death worldwide, with hundreds of thousands of cases occurring each year
    • Can happen to anyone at any time, often without warning
  • CPR and AED greatly increase the chance of survival for a person in cardiac arrest
    • Brain damage can occur within minutes if blood flow stops, so quick action is crucial
  • Performing CPR can double or triple a person's chance of survival
    • Keeps oxygenated blood flowing to the brain and other vital organs
  • Using an AED within the first few minutes of cardiac arrest can increase survival rates up to 90%
  • Every minute without CPR and defibrillation reduces the chance of survival by 7-10%
  • Many cardiac arrests occur outside of a hospital setting, so bystanders play a critical role in providing immediate help
  • Learning CPR and AED skills empowers individuals to potentially save a life in an emergency situation

The ABCs of CPR

  • The ABCs of CPR stand for Airway, Breathing, and Circulation
    • Represents the key steps in performing CPR
  • Airway: Ensure the person's airway is open and clear of any obstructions
    • Tilt the head back and lift the chin to open the airway
    • Check for any visible objects blocking the airway and remove if possible
  • Breathing: Check for breathing and provide rescue breaths if needed
    • Look, listen, and feel for any signs of breathing
    • If no breathing, provide two rescue breaths by pinching the nose and breathing into the mouth
  • Circulation: Perform chest compressions to maintain blood circulation
    • Place hands on the center of the chest and compress to a depth of at least 2 inches
    • Compress at a rate of 100-120 per minute, allowing the chest to fully recoil between compressions
  • The ABCs should be performed in a continuous cycle until emergency medical help arrives or the person starts breathing on their own
  • Remember the mnemonic "CAB" (Compressions, Airway, Breathing) to prioritize chest compressions in the CPR sequence

Step-by-Step CPR Guide

  • Assess the situation and ensure it is safe to approach the person
  • Check for responsiveness by tapping the person and shouting "Are you okay?"
    • If no response, call for emergency medical help or ask someone else to call
  • Check for breathing by looking for chest movement, listening for breath sounds, and feeling for air
    • If no breathing, begin CPR
  • Perform 30 chest compressions at a rate of 100-120 per minute
    • Place the heel of one hand on the center of the chest and the other hand on top
    • Compress to a depth of at least 2 inches, allowing the chest to fully recoil between compressions
  • After 30 compressions, open the airway by tilting the head back and lifting the chin
  • Give two rescue breaths by pinching the nose and breathing into the mouth
    • Each breath should last about one second and make the chest visibly rise
  • Continue the cycle of 30 compressions and two breaths until emergency medical help arrives or the person starts breathing on their own
  • If you are not trained in giving rescue breaths, perform continuous chest compressions without pausing for breaths
  • Remember to switch roles with another rescuer if possible to avoid fatigue

AED Basics and Usage

  • AED is a portable device that analyzes heart rhythm and can deliver an electric shock to restore normal rhythm
  • Can be used by anyone, even without medical training
    • Device provides voice and visual prompts to guide the user through each step
  • First, make sure the scene is safe and the person is unresponsive with no breathing
  • Turn on the AED and follow the prompts
    • Device will instruct you to apply electrode pads to the person's bare chest
  • AED will analyze the heart rhythm and determine if a shock is needed
    • If a shock is advised, make sure no one is touching the person and press the shock button
    • If no shock is advised, resume CPR
  • Continue following the AED prompts and performing CPR until emergency medical help arrives or the person starts breathing on their own
  • AEDs are designed to be safe and will not deliver a shock unless it detects a shockable rhythm
  • Many public places (offices, schools, airports) have AEDs available for emergency use

Common Mistakes to Avoid

  • Not calling for emergency medical help before starting CPR
    • Crucial to get professional help on the way as soon as possible
  • Not checking for responsiveness or breathing before starting CPR
    • CPR should only be performed on someone who is unresponsive and not breathing
  • Performing compressions too slowly or not deep enough
    • Compressions should be at a rate of 100-120 per minute and a depth of at least 2 inches
  • Not allowing the chest to fully recoil between compressions
    • Chest must be allowed to return to its normal position for blood to refill the heart
  • Interrupting compressions for too long
    • Minimize interruptions in compressions to maintain consistent blood flow
  • Not opening the airway properly before giving rescue breaths
    • Head must be tilted back and chin lifted to ensure an open airway
  • Not using an AED as soon as one becomes available
    • AED should be used as early as possible for the best chance of survival
  • Touching the person while the AED is analyzing the heart rhythm or delivering a shock
    • No one should be in contact with the person to avoid interference or injury

Practice Scenarios

  • Scenario 1: You see a coworker collapse and become unresponsive in the office breakroom. What should you do?
    • Check for responsiveness and breathing, call for emergency help, and begin CPR if needed. Send someone to retrieve an AED if available.
  • Scenario 2: You're at a shopping mall and hear someone yelling for help. You find a person lying on the ground, not breathing. How do you respond?
    • Call for emergency help, check for breathing, and start CPR. Ask someone to locate an AED and bring it to the scene.
  • Scenario 3: You're at home and your elderly neighbor knocks on your door, clutching their chest and struggling to breathe. What actions should you take?
    • Help the neighbor sit or lie down, call emergency services, and be prepared to perform CPR if their condition worsens. Stay with them until help arrives.
  • Scenario 4: You're at a community pool and see a child being pulled from the water, unresponsive. The lifeguard begins CPR. How can you assist?
    • Call emergency services if not already done, retrieve an AED if available, and offer to help with CPR by alternating rounds of compressions with the lifeguard.
  • Practicing scenarios helps build confidence and preparedness for real-life emergencies
    • Consider taking a CPR and AED certification course for hands-on training and practice

Key Takeaways and Tips

  • CPR and AED are crucial life-saving techniques that can greatly increase the chance of survival for a person in cardiac arrest
  • The ABCs of CPR stand for Airway, Breathing, and Circulation
    • Ensure an open airway, check for breathing, and perform chest compressions
  • Perform CPR in cycles of 30 chest compressions and two rescue breaths until help arrives or the person starts breathing
  • Use an AED as soon as one becomes available, following the device's voice and visual prompts
  • Minimize interruptions in chest compressions and ensure compressions are deep and fast enough
  • Call for emergency medical help immediately and before starting CPR
  • Be prepared to perform CPR and use an AED in any setting, not just in medical facilities
  • Consider taking a CPR and AED certification course for hands-on training and practice
  • Refresh your skills regularly to maintain proficiency and stay updated on any changes in guidelines
  • Remember, performing CPR and using an AED can make the difference between life and death in an emergency situation
    • Your quick action and willingness to help can save a life


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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.