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