Final answer:
When you find someone like a swim coach without a pulse, remove them from the water and begin CPR on solid ground immediately. Dismiss the myths about shouting and waving for help during a drowning incident and be ready to overcome the bystander effect by taking action or getting help from authorities.
Step-by-step explanation:
If you observe that the swim team coach suddenly collapses and does not have a pulse, it is essential to act quickly and start CPR (cardiopulmonary resuscitation). It's important to dispel a common myth: performing CPR on someone who is drowning should not take place in the water. The reality is that CPR is ineffective in the water and the person must be removed to stable ground before administering CPR. If the individual is unconscious in the water, do not assume it is too late; there could still be a chance for recovery, especially if CPR is begun promptly.
Also, be aware of another myth that suggests a drowning person will shout and wave for help. In reality, due to airway spasm, drowning persons are often unable to vocalize and their movements may be subtle and hard to distinguish from calm behavior. After securing the victim on stable ground and confirming they have no pulse, immediately begin CPR and call for emergency services. If you're not trained in CPR, look for someone who is or request guidance from emergency responders. Additionally, always be ready to overcome the bystander effect by taking action or alerting an authority figure who can provide the necessary assistance.