Answer :
Answer:
b
Explanation:
a and d are wrong and it can be push down to atleast 2 inches
Full recoil of the chest should occur with each compression an important factor to ensure that the best-quality CPR is being performed.
How is the CPR performed?
- Compressions are the most crucial CPR procedure. The main factor affecting survival after cardiac arrest is effective CPR.
- In order to save more lives, medical professionals must be skilled at performing high-quality CPR, and patient care teams must be organized and capable of cooperating efficiently.
Among the top CPR performance indicators are:
- >80% for chest compression fraction
- 100–120 compression cycles per minute
- At least 50 mm (2 inches) of compression depth in adults, and at least one-third of the chest's AP dimension in newborns and young children
- not too much ventilation
learn more about CPR here: https://brainly.com/question/3725035
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