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Questions and Answers
What is the primary function of the heart in the circulatory system?
What is the immediate effect of cardiac arrest on a person?
What is the primary goal of Basic Life Support (BLS)?
What is the purpose of delivering proper chest compressions in BLS?
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What is an important aspect of working with other rescuers in BLS?
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What is an important skill to have in BLS, in addition to chest compressions and rescue breathing?
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What is the primary consequence of blood flow stopping in the body?
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What is the role of the lungs in the circulatory system?
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What is the benefit of quickly starting the Chain of Survival in BLS?
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What is the relationship between the heart and vital organs in the circulatory system?
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What is the significance of understanding how to treat choking in BLS?
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What is the ultimate goal of BLS until advanced care becomes available?
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Study Notes
The Heart and Blood Flow
- The heart pumps blood through the lungs, where it takes in oxygen and releases carbon dioxide.
- Oxygenated blood returns to the heart and is pumped out to vital organs, including the heart, brain, liver, kidneys, and lungs, as well as the rest of the body.
Cardiac Arrest
- When the heart stops working, blood flow stops, and the person quickly becomes unconscious.
- Without blood flow, the heart and brain quickly become damaged due to lack of oxygen.
Basic Life Support (BLS)
- BLS tries to prevent or slow damage to vital organs until the cause of the problem can be corrected.
- BLS improves a person's chance of surviving until advanced care becomes available.
Keys for BLS
- Quickly start the Chain of Survival.
- Deliver proper chest compressions to circulate oxygen to the brain and vital organs.
- Know when and how to use an Automated External Defibrillator (AED).
- Provide rescue breathing.
- Understand how to work with other rescuers as part of a team.
- Know how to treat choking.
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Description
Test your knowledge on the basics of life support, including the heart's role in pumping blood and the effects of cardiac arrest on the body. Learn how to respond in emergency situations.
