This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Anaesthesia
In CPR, number of chest compression per minute in an adult: 
Select and explain. 
A. 30-50 per minute, B. 50-72 per minute, C. 100-120 per minute, D. 120-200 per minute
C: 100-120 per minute
Answer: C: 100-120 per minute 
Explanation: Rate : 100-120/ minute Depth: Adult - 5-6 cm Pediatric - 4-5 cm Infants - Atleast 4 cm Allow complete recoil for proper filling of heaAdequate ventilation- avoid excessive ventilation