Respuesta :
Answer:A. Re-tilt the victim's head and then attempt another ventilation.
Explanation:
Ventilation is the process in which the patient receives oxygen by compressing the chest and blowing in the air.
The next step before performing CPR will be re-tilting the victim's head and attempting another ventilation.
The ventilation is given in the ratio of 30:2 and should be continued in the same way until the advanced airways are provided.
The ventilation should be continued if the victim is not breathing and have a pulse. The chest should rise after giving the ventilation, if not then the victim's head should be re-tilted and attempt another ventilation.
Thus, the correct answer is Option A.
To know more about CPR and ventilation, refer to the following link:
https://brainly.com/question/4130421