The following is not true of platelet transfusion
Useful in ITP
Used in DIC
Effective for 9-10 days
Effect decrease with repeated usage
DIC is associated with increased platelet consumption (thrombocytopenia), so platelets are given.Transfused platelets generally survive for 2 to 7 days following transfusion (not for 9-10 days).Platelet ConcentratesPlatelets are the only blood products which are stored at room temperature.Survival at room temperature is 4 to 5 days while at 4degC is 24 to 48 hours.1 unit of platelet increases the count by 5,000-10,000 cells/cu.mm.Count less than 50,000 are associated with increased blood loss during surgery, so these patients should be given platelets preoperatively to increase the count to 1,00,000 before accepting for surgery.Transfused platelets generally survive for 2 to 7 days following transfusion.ABO compatibility is desirable but not necessary.(Refer: Harrison's Principles of Internal Medicine, 18th edition, pg no: 953, 980)
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