If your doing CPR on someone, what difference does it make?

Question

if you count wrong? Suppose you do too many compressions and not enough rescue breaths? OR vice versa? Too may breaths and not enough compressions. I can see how anyone could panic and miscount in an emergency,

Thats why I am asking how critical is the ratio?

Answer 1

it isn't critical that it is exact  they give these ratios because they want the brain to be supplied with the most  oxygen possible until the patient can get to the hospital