Platelets

Platelet concentrates can either be made from blood from a single donor or pooled from several donors. Once prepared platelets are kept at room temperature in a shaking rack and the shelf life is only 5 days. Once released from the laboratory infusion (through a blood giving set) should be rapid. Platelet transfusion is used in patients who are thrombocytopaenic or have disordered platelet function and whole are actively bleeding (therapeutic use) or at serious risk of bleeding (prophylactic use). For prophylaxis the platelet count should be kept above 5-10 X 109/l. For minor invasive procedures the platelet count should be kept above 50 X 109/l. Platelet transfusions should be avoided in auto-immune thrombocy-topaenic purpura unless there is serious haemorrhage. They are contraindicated in heparin-induced thrombocytopaenia, thrombotic thrombocytopaenic purpura and haemolytic uraemic syndrome.

Donor

Test for:

Determine ABO + RH(D) Type

Red cells

Red cells

Process into blood components

Process into blood components

Plasma

Plasma

Platelets

Fractionation

Store

0 0

Post a comment