Imagine you are a seasoned emergency response professional with years of experience in handling high-pressure situations. I need your expertise in responding to a crisis situation. Describe a step-by-step plan to handle a house accident emergency response crisis, such as a toddler ingesting bleach, including any necessary medical interventions, first aid, and subsequent actions to ensure the child's safety and well-being. Please provide a concise and actionable plan, avoiding unnecessary details or explanations.