The chart above illustrates that group O blood is the most versatile.
Universal donors and recipients
Our blood naturally consists of various components. The main components are:
Red Blood Cells
|FAQs – About blood||
What are the different blood types?
Everybody has a particular blood type which his jointly inherited from their mother and their father. There are two major blood typing systems – the ABO system and the Rhesus system (Rh factor positive or negative) – the different combinations of which result in 8 major blood types (A+, A-, B+, B-, AB+, AB-, O+, O-). When a transfusion is required, it is preferable that the patient receive blood of the same ABO and Rh type. However, in an emergency, if the required blood type is unavailable, a patient may be given blood of a different, but compatible type.
What are the different components of blood and what do they do?
Red cells give blood its colour and account for 40 – 50% of its volume.
Platelets are components of blood that assist in the blood clotting process.
Plasma is the straw coloured fluid in which the red cells, white cells and platelets are suspended.
How much blood will I give?
A single unit of blood taken during a whole blood donation is approximately 475 ml (less than half a litre), which is less than 10% of your total blood volume. Your body keeps on replenishing blood all the time whether you give blood or not, so this amount is quickly replaced. Plasma is replaced within 2 – 3 days, platelets
How much blood does an adult body have?
An average size adult has a blood volume of around 4.5 – 5.5 litres.
What will happen to my blood after I donated?Every single donation is tested for HIV, Hepatitis B and C, and Syphilis and the blood group is determined. Only safe blood that tests negative for all abnormalities is then divided into its constituent parts and transformed into blood products. These products are stored accordingly, after which they are issued to blood banks which are located across Namibia and issued to patients according to their specific medical requirements.