logo
h-s-c link link link

Blood Donors >> Facts about Blood and its Components

  • Blood ComponentsBlood makes up about 7 percent of your body's weight.
  • There are four types of transfusable products that can be derived from blood: red cells, platelets, plasma and cryoprecipitate. Typically, two or three of these are produced from a unit of donated whole blood hence each donation can help save up to three lives.
  • Donors can give either whole blood or specific blood components only. The process of donating specific blood components red cells, plasma or platelets is called apheresis.
  • One transfusion dose of platelets can be obtained through one apheresis donation of platelets or by combining the platelets derived from five whole blood donations.
  • Donated platelets must be used within five days of collection.
  • Healthy bone marrow makes a constant supply of red cells, plasma and platelets. The body will replenish the elements given during a blood donation some in a matter of hours and others in a matter of weeks.