00:00Our heart is an amazing organ.
00:03It works hard for us every second of every day, delivering blood and oxygen to every
00:07cell in our body.
00:10But when sudden cardiac arrest strikes, our heart suddenly and unexpectedly stops beating
00:15effectively and blood flow stops.
00:19Without any intervention, the brain, vital organs and our heart will begin to die.
00:25Beginning CPR is the person's only chance of survival.
00:29Brain damage will start to set in within 4 minutes, and after 10 minutes, brain damage
00:34becomes irreversible.
00:36The power to save a life is truly in your hands.
00:40Performing CPR accomplishes two critical things.
00:44One, compressions move oxygenated blood to the brain to keep the brain alive.
00:49And two, compressions keep blood and oxygen moving to the heart muscle itself, so that
00:54it has the best chance of resuming a normal electrical rhythm after a shock is delivered.
00:59As you begin compressions, you are creating an artificial pump and doing the work of the
01:04heart manually.
01:06With each good effective compression, you are building up pressure in the system which will
01:11move blood around the heart and up to the brain.
01:14It does take time to get the blood moving with CPR, so it is very important to push hard
01:19and push fast to build the pressure up which keeps blood going to the brain.
01:25Pushing down at least 2 inches allows for the heart to be squeezed and blood to move out.
01:31Pushing at a rate of 100 to 120 compressions per minute is necessary to keep blood pumping.
01:37Let us see what happens when we take our hands off the chest.
01:42Blood stops moving to the brain.
01:45It is for this reason that if you are taking your hands off the chest to deliver breaths
01:49or switching rolls, it is critical to minimize time off the chest.
01:55Watch what happens when we do not push deep enough.
01:59Blood does not reach the brain.
02:03The same is true if we do not push fast enough.
02:07Watch what happens when we push too fast.
02:11The heart does not have time to refill with blood.
02:13Therefore, not enough blood gets pumped out.
02:19Watch what happens when we do not allow the body to decompress and allow the chest to fully
02:23recoil.
02:25The heart does not have a chance to refill with blood.
02:28Therefore, no blood gets pumped out.
02:33The purpose of delivering compressions is to keep oxygenated blood moving within the heart
02:38and up to the brain to keep the brain alive.
02:42We need to push hard and push fast in the center of the chest.
02:47If ribs break, that is okay.
02:50What is not okay is allowing the brain to die from a lack of oxygen.
02:54So remember, you are their only hope.
02:59Do the best you can and don't give up until medical help arrives or an AED is present.
03:05You can do it.
03:15time for an AED is present.
03:17We are going to continue to go to the chest.
03:23See further.
03:24Say hello to the chest.
03:26Take a minute because of the chest.
03:28All the way, let's take a minute.
03:31Next is the chest.
03:32Take a minute.
03:32Take a minute.
03:34Take a minute.
03:35Take a minute.
03:36Take a minute.
03:37Take a minute.
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