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Cardiac arrest is when the heart STOPS BEATING.  Compressions that are heard and fast can move blood through the heart into the rest of the body.


Speed is Critical…


For every minute passes without any CPR or a shock by an AED the probability a shock will save the victim drops about 10%.


The chances of survival are 0% after 10 minutes with no CPR.






According to the AHA starting chest compressions immediately even without an AED can radically improve the chances of survival.  The probability of success only drops by 4% every minute if you continue doing good CPR.


After about 10 minutes survival rates are at about 60% with good CPR.



So what does CPR do?


Compressions move some blood to the brain to help preserve it.  It also plays a significant role in the survivor’s quality of life.  Compressions also provide some oxygen to the cells of the heart and the rest of the body. 



So what does an AED do?



When the heart is in a shockable rhythm the AED stuns the heart.  This

allows the hearts own electrical pacemaker to recognize and restore a natural rhythm and heartbeat.    As the heart’s electrical system reorganizes CPR is needed to continue blood flow.  If the victim has been down for several minutes the AED may indicate no shock advised.  CPR should be continued to maintain blood and oxygen flow.



Everyone should know CPR!


Think of these scenarios:


  • You are home alone with a family member (child, parent spouse) and someone goes into sudden cardiac arrest. How long will it take you to access the victim, to call 911 and for help to arrive?  Brain Cells start to die in 4-6 minutes after the heart stops without CPR. 
  • You work in a factory or large office. A coworker goes down.  How long will it take to reach the person, call 911 and for help to arrive.  Keep in mind the size of your building and the number of floors.


As an EMT the chance for me to help save a life of someone in cardiac arrest are low with our bystander CPR being performed. 


What causes delays in EMS?


  • Traffic
  • High call volume
  • Poorly lit house/building numbers
  • Numbers not visible
  • Large buildings
  • High rises (multiple floors)



How can you help?


  • START CPR Immediately
  • Make sure you have a visible house number that is well lite.
  • Give good directions to the dispatcher as to where the victim is and if possible have someone meet them at the door.
  • Make sure the door is unlocked so EMS can enter
  • Have someone hold the elevator for EMS
  • Discuss with your company about the possibility of buying an AED.




Who should learn CPR?




Safety NJ LLC sells First Aid kits and supplies, sells AED’s and provides CPR training both at our facility in Bloomfield NJ or we can come to your company or organization. 


We often provide training at:


  • Businesses
    • Offices, Factories, warehouses
    • Gyms, Karate, fitness centers
    • Nursing homes
    • Child care centers
    • Government buildings
    • Pools
    • Recreation Centers
    • Restaurants
  • Houses of Worship
  • Social Organizations
  • Sports (baseball, football) Coaches

And more.


For information and pricing on CPR or first aid training or for items we sell call 973-320-3200 or visit our website


Information on the author of this article and the owner of Safety NJ LLC


Scott Larson has been an EMT for almost 45 years and has volunteered for the AHA for many years.  Scott started teaching CPR in the 1970’s.  He has worked for many years in an intercity hospital teaching the medical staff and was responsible for EMS training. 

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