What action should be taken if CO poisoning is suspected?

Isolating the suspected breathing source is critical in cases of carbon monoxide (CO) poisoning because it helps to prevent further exposure to the toxic gas. Carbon monoxide is a colorless, odorless gas that can cause serious health issues, including unconsciousness and death. By removing the source of CO, you significantly reduce the immediate danger to the affected individual and others in the vicinity.

Taking this action should be prioritized before any other measures are implemented. For instance, while removing the diver's gear may be necessary, this action does not address the immediate threat of ongoing exposure to CO. Calling for a cab or waiting for symptoms to improve fails to provide the required urgent response to a potentially life-threatening situation. Immediate steps should focus on ensuring safe breathing conditions and initiating appropriate medical assistance as soon as possible.