redcross.org
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RedCross.org is the official site of the American Red Cross, offering resources on emergency preparedness, disaster relief, blood donation, and safety. It features first aid and CPR/AED guidance, training courses, and practical tips for handling everyday emergencies.
More resources on Basic First Aid
mayoclinic.org
Mayo Clinic is a trusted nonprofit medical center offering an extensive, doctor‑reviewed health information library. Its site includes first aid basics and practical guidance for common emergencies, plus safety tips and symptom information.
stjohn.org
St. John is an organization focused on emergency medical response and life-saving first aid. The site provides beginner-friendly first aid guides, CPR instructions, safety tips, and information on training courses, certifications, and volunteering opportunities.