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