Answer:
Adult CPR, Child CPR and Infant CPR.
Step-by-step explanation:
Before administrating CPR on an adult, you should always call 999/911 etc. This must be done incase the caller is not trained in CPR and the emergency services can guide them through the process.
Child CPR can be because of a pediatric issue, most children need CPR due to drowning. ALWAYS call emergency services for a child if they need CPR, a child's airway is more fragile and sensitive towards an adults, if you do NOT know CPR, DO NOT attempt on the child or you can cause more possible injury.
Infant CPR is basically the same as CCPR. Always call 999/911 and do not attempt to do CPR on the infant, you must either be trained or guided by the operator/medical services (same for a child).