What should you do if a pediatric patient collapses and is unwitnessed without normal breathing?

In the scenario where a pediatric patient collapses and is not breathing normally, the appropriate course of action is to begin CPR immediately. This is critical because in cases of unwitnessed collapse without normal breathing, the patient may be in cardiac arrest. Timely initiation of CPR can provide vital oxygen to the brain and other organs, significantly improving the chances of survival and positive outcomes.

The rationale behind starting CPR right away includes understanding that the brain can begin to suffer irreparable damage within minutes of not receiving oxygen. Additionally, in a child, the causes of cardiac arrest can vary, and immediate action is essential to address any potential life-threatening conditions effectively.

While other choices might seem relevant, such as calling for emergency help or checking the pulse, delay in performing CPR can decrease the likelihood of a favorable outcome. Therefore, starting CPR as soon as possible is the most critical response in this situation.