What is the purpose of shouting for help when starting CPR on an unresponsive infant?

Shouting for help when starting CPR on an unresponsive infant serves primarily to alert bystanders to the situation. This action is crucial because it may prompt others nearby to assist or call emergency services. By vocalizing an urgent need for help, the CPR provider can potentially gather additional support, such as someone who can take over CPR if needed or someone who can run to get an Automated External Defibrillator (AED) if available.

In critical situations like this, effective communication can make a significant difference in the outcome, as the prompt arrival of emergency medical personnel can be vital. The other options suggest actions that do not align with the immediate needs of the situation or are not effective in mobilizing help.