Blood Component Preparation And Therapy Flashcards
Plasma-derived components (8)
Fresh frozen plasma Plasma Cryoprecipitate Factor VIII concentrate Factor IX concentrate Anti-inhibitor coagulation complex Immune globin Albumin/plasma protein factor
Hard spin aka
Heavy spin
Heavy spin aka
Hard spin
Speed and time for PRBC
Heavy/hard spin
-5000 g for 5 mins
Speed and time for platelet concentrate
Heavy/hard spin
-5000 g for 5 mins
Speed and time for preparing cryoprecipitate
Heavy/hard spin
-5000 g for 7 mins
Speed and time for preparing leukocyte-reduced RBC
Heavy/hard spin
-5000 g for 7 mins
Speed and time for preparing cell free plasma
Heavy/hard spin
-5000 g for 7 mins
Speed and time for preparing PRP
Light/soft spin
2000 g for 3 min
Hard/heavy spin (2)
5000 g for 5 mins
-PRBC, PC
5000 g for 7 mins
-cryoprecipitate, leukocyte-reduced RBC, cell free plasma
Light/soft spin (1)
2000 g for 3 min
-PRP
Used to replace the loss of both RBC mass and plasma volume in actively bleeding patients
Whole blood
T/F: no viable plts in whole blood
True
T/F: decreased labile coagulation factors (Factor V and VIII) in whole blood
True
Labile coagulation factors which are decreased in whole blood (2)
Factor V
Factor VIII
Whole blood for exchange transfusion should be __ old
Less than 6 days old
PRBC prepared by (2)
A. Sedimentation
B. Centrifugation
For treatment of symptomatic anemia where O2 capacity is needed
PRBC
For Px who can’t tolerate increased blood col
PRBC
Advantages of PRBC over whole blood (3)
Equal O2 capacity in half the vol of whole blood
Significant reduction in antibodies (anti-A and anti-B) facilitating safe transfusion of group O to non-group O recipients
Significant reduction in lvls of acid, citrate, and potassium load in Px’s with cardiac, liver, and renal diseases
For neonates
RBC aliquots
RBC aliquotes for treatment of anemia caused by (3)
Spontaneous fetomaternal hemorrhage
Obstetric accidents
Internal hemorrhage
For the treatment of anemia caused by spontaneous fetomaternal hemorrhage, obstetric accidents, internal hemorrhage
RBC aliquotes
Ave unit of RBC contains __ WBCs
2x10^9 leukocytes
A reduced leukocyte content to __ prevents repeated non-hemolytic febrile transfusion rxns
Less than 5x10^8 leukocytes
A reduced leukocyte content to 5x10^8 prevents
repeated non-hemolytic febrile transfusion rxns
A reduced leukocyte content to __ prevents HLA sensitization
5x10^6
A reduced leukocyte content to 5x10^6 prevents
HLA sensitization
Reduces immunosuppression of recipient by donor WBC
Leukocyte reduced RBC
Prevents allo immunization to HLA, CMV transmission, and recurrent non-hemolytic febrile transfusion rxn
Leukocyte reduced RBC
T/F: Leukocyte reduced RBC DOESN’T prevent graft vs host disease
True
Most gods to prepare leukocyte-reduced RBCs (2)
Centrifugation
Filtration
Leukocyte reduced RBC: filters (3)
-describe each
- generation: 1st
Pore size: 170-260 um
Filter/mechanism: screen filter- removes fibrin clots - Generation: 2nd
Pore size: 20-40 um
Filter/mechanism: micropore screen filter- remove microaggregates like plts, nucleus, degenerated WBCs, cell fragments - Generation: 3rd
Pore size: n/a
Filter/mechanism: adhesion filter- removes almost 99.9% of WBCs leaving less than 5x10^8 WBCs
Removes fibrin clots
First generation filter: screen filter
Remove micro aggregates like nucleus, plts, degenerated WBCs, cell fragments
2nd generation: micropore screen filter
Removes 99.9% of WBC leaving less than 5x10^8 WBC
Third generation filter
First generation filter pore size
170-260 um
Second generation filter pore size
20-40 um
Washed RBCs for the treatment of (4)
AIHA
paroxysmal nocturnal hemoglobinuria
Px’s with IgA deficiency
Allergic reactions
Given to treat AIHA paroxysmal nocturnal hemoglobinuria Px's with IgA deficiency Allergic reactions
Washed RBCs
For prolonged cell storage for rare blood donor units, autologous units, and units for special purposes (like intrauterine transfusion)
Frozen deglycerolized RBCs
Process which removes nearly all WBCs and plasma
Frozen deglycerolized RBCs
200-250 mL of plasma frozen at -18•C within 8 hrs of collection
Fresh frozen plasma
FFP: __ mL of plasma frozen at -18•C within 8 hrs of collection
200-250
FFP: __ mL of plasma frozen at __ within __ hrs of collection
200-250 mL
-18•C
8 hrs
T/F: FFP without plts available
True
contains all coagulation factors
Fresh frozen plasma
Used to treat multiple coagulation deficiencies occurring in patients with liver failure, vit K deficiency, DIC, massive transfusion, warfarin toxicity
Fresh frozen plasma