BLS Basic life support (Latest 2020 AHA)
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Adult chest compressions Quiz
1. Position of your hands during Chest compressions
1
At 90 degrees to the floor, with straight elbows
Place them close to the neck
At 90 degrees to the floor, with elbows bent to 90 degrees
Place them at the center of abdomen
2. Regarding depth of chest compressions
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Compress upto 4cm in adults
Compress as deep as possible
Compress 1/3rd the chest
Compress 5cm depth
3. What happens with interruptions in chest compressions?
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Rescuers get tired
Perfusion pressures go down
Drastic improvement in perfusion
Improved output from heart
4. Which is not a feature of high quality CPR
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A rate of 100-120 compressions/min
Minimize interruptions
Depth of 1/3rd chest diameter (2inches/5cms)
Minimize chest recoil
5. Why is chest recoil important
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Increased chest pressures impair blood flow returning to the heart
Heart can get injured if there’s no recoil
Chest recoil helps with oxygenation
Ribcage gets strengthened with recoil
6. For chest compressions to be effective, the surface should be
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Surface with a bump in middle
Soft and fluffly to avoid injuries
Flat and firm
It doesn’t matter
7. What happens when you compress at a faster rate than recommended 100-120 / min?
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You will get tired faster
You might break the ribcage
Heart chambers will not have time to refill
Oxygen cannot reach lungs
