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