What are the first aids for stopped breathing serious bleeding and ingested poisoning?

Stopped breathing - commence artificial respiration (and heart compressions if the heart has stopped)

Serious bleeding - apply pressure (with sterile cotton pad) to the site of the bleed

Ingested poisoning - give milk or other fluids to help dilute the poison DO NOT make the casualty sick - as they poison may be corrosive and will damage the throat tissues when the patient vomits.

In ALL cases - seek medical attention ASAP !