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When every second counts, type O blood is the first to save lives — and you have the power to keep that precious resource flowing. 

Every blood type matters, but type O holds a special place in saving lives. Type O-negative can be transfused to anyone, crucial in emergencies when there isn’t time to determine a patient’s blood type. Type O-positive, the most common blood type, is critical for trauma situations and routine transfusions. 

When every second counts, type O is the foundation of emergency care. From highways to hospital rooms, it’s the blood type most often used to save lives in critical situations — and trauma care often begins far from the safety of a hospital. In pre-hospital settings like ground ambulances, air ambulances and standalone emergency departments, type O blood is frequently the first line of defense.  

For patients in need of immediate transfusions, O-negative blood is vital because it can be given to anyone without compatibility testing. In fact, lifesaving transfusions often start right at the site of the emergency, whether on a helicopter that lands on a highway or an ambulance called to a remote location. 

As a blood drive coordinator, you have a unique opportunity to educate donors about the vital importance of type O blood. By sharing key information, you can inspire action and increase the availability of this lifesaving substance. 

Here are some highlights to share with your donors: 

  • O-negative blood can be transfused to any patient, making it indispensable in trauma care and life-threatening emergencies. 
  • Nearly 40% of the population has O-positive blood, and it’s the most frequently transfused blood type.
  • Type O blood is the first to be depleted during critical shortages, making the need to collect it that much more pressing. 

Keeping a steady supply of type O requires more than awareness — it requires action.  

Thank you for your dedication and efforts in supporting this critical mission! 

Article published for the Vital Connections newsletter.