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frequently asked questions So, what's the hype about Type O?
Because 45% of the population has Type O blood, it is the most common blood type. However, at Central Kentucky Blood Center, you are far from common if you have Type O blood. You are the difference between an adequate blood supply and an emergency shortage.

When blood is transfused, the blood type of the patient usually is matched to pint (or unit) of blood of the same blood type. Type O blood is special because it can be given to most other blood types. Another factor that must match is the Rh factor. You're either Rh negative or Rh positive.

When you're out of Type O, you're out of everything!
Type O donors are often called the "universal" blood donors, but Type O individuals can receive only Type O blood.

A shortage of Type O:
  • can be the worst of all shortages, and
  • prompts most emergency situations for the community's blood supply
Let's take a look at the two different type of O blood: Type O negative and Type O positive.

Type O Negative Blood
As a Type O negative donor, we have a great need for your whole blood donations. Your type is uncommon. Only 6% of the population is Type O negative. It is the type we need for Type O negative patients and for emergencies. Type O negative patients should receive blood only from O negative donors. People with every other blood type can also safely be transfused with O negative blood. This is usually done in an extreme emergency, before their own blood types can be determined. In addition, O negative is often the preferred blood type for newborn infants when they need blood.

Type O Positive Blood
As a Type O positive donor, we also have a great need for your whole blood donations. Your type is the most common. Nearly 40% of the population is O positive. It is the type in greatest demand. O positive comes to the rescue of many patients because it can also be transfused to patients with other blood types. In fact, our frozen rare blood resources are O positive and O negative because they can be used to help any patient with a special problem.

You Can Make a Difference!
We urge all Type O donors to give blood several times a year and bring along a family member to share in this life-saving experience. Since your blood type is inherited, members of your immediate family may be "universal" donors, too.

Some things you just do...automatically!
You may also be eligible to give blood on one of our automated blood collection cell separator machines allowing you to donate two pints (or units) of your Type O red cells. For more information, call CKBC at 859.276.2534 and ask about giving "double red cells" at your next donation.
   


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