Component Preparation Flashcards
What is the role of ATP and 2,3-DPG as it pertains ot RBC survival
- ATP helps RBCs move Na+ and Ca2+ out of the cell
- 2,3-DPG controls hemoglobin affinity for O2
State the primary goal of a RBC perservative
To provide 75% survival of transfused blood 24 hours post-transfusion
Changes seen in stored blood
- Plasma K+
INCREASED
Changes seen in stored blood
- Plasma Na+
DECREASED
Changes seen in stored blood
- Plasma hemoglobin
INCREASED
Changes seen in stored blood
- ATP
DECREASED
Changes seen in stored blood
- 2,3-DPG
DECREASED
Changes seen in stored blood
- pH
DECREASED
Expiration date of blood drawn in ACD and CPD
21 days
Expiration date of blood drawn in CPDA
35 days
Expiration date of blood drawn in AdSol
42 days
Centrifugation process when preparing packed RBCs
?
Centrifugation process when preparing random platelets
?
Centrifugation process of fresh frozen plasma
?
Centrifugation process of cryoprecipitate
WB → hardspin → plt-poor plasma → freeze plasma → thaw plasma in 1-6°C waterbath → “Cryo” will precipitate in cold → hardspin → remove cryo-poor plasma, leaving cryo precipitate in the bag
Difference b/w components prepared in an “open system” and “closed system”
?
Expiration date w/ an open system
24 hours
Expiration date w/ a closed system
Does not change
Describe the use of a “sterile docking device”
?
Give examples of when a “sterile docking device” is used
?
How does the procedure of a “sterile docking device” affect the expiration of the product?
?
Why do platelet products need constant agitation?
To prevent them from clumping
How do irradiation of products prevent Graft vs. Host Disease (GVHD)?
Irradiation destroys T lymphocyte’s ability to mount an immune response
Calculate the enw expiration date when red cell or platelet products are irradiated
?
Proper packing procedure when shipping Red cell products (liquid)
Ship w/ “wet ice” or crushed ice, not touching donor units (separated by cardboard)
Proper packing procedure when shipping platelet products
Ship at room temperature
Proper packing procedure when shipping frozen platelet products (FFP, Cryo, frozen cells)
Ship w/ dry ice
Packed Cells, AdSol
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 42 days
- Storage temp: 1-6°C
- Content: RBCs, WBC, ↓ plasma
- QC: ≤ 80% Hct
- Indications: Anemia
- Tx criteria: XM required; ABO-compatible required
Leukoreduced packed cells
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 42 days
- Storage temp: 1-6°C
- Content: RBCs, ↓ plasma
- QC: ≤ 80% Hct, < 5x10^6 WBCs
- Indications: Anemia, hx of febrile rxns
- Tx criteria: XM required; ABO-compatible required
Washed packed cells
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 24 hours
- Storage temp: 1-6°C
- Content: RBCs
- QC: < 5 x 10^6 WBCs
- Indications: Anemia, IgA deficient patients, removal of K+ and anticoagulant
- Tx criteria: XM required; ABO-compatible required
Frozen cells/Deglyc’d cells
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 10 years frozen/24 hours thawed
- Storage temp: ≤ -65°C frozen/1-6°C thawed
- Content: RBCs
- QC: < 5 x 10^6 WBCs
- Indications: Anemia, IgA deficient patients, rare units
- Tx criteria: XM required; ABO-compatible required
Random platelets
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 5 days
- Storage temp: RT w/ agitation
- Content: Plt, plasma, WBCs
- QC: ≥ 5.5 x 10^10 plts; ≥ 6.2 pH
- Indications: Low platelets
- Tx criteria: ABO-compatible preferred
Random platelet, pool
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 4 hours
- Storage temp: RT w/ agitation
- Content: Plt, plasma, WBCs
- QC: ≥ 6.2 pH
- Indications: Low plts
- Tx criteria: ABO-compatible preferred
Apheresis platelets
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 5 days
- Storage temp: RT w/ agitation
- Content: Plt, plasma, WBCs
- QC: ≥ 3.0 x 10^11 plts; ≥ 6.2 pH
- Indications: Low plts
- Tx criteria: ABO-compatible preferred
AFFP, FFP, PF24, frozen
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 1 year
- Storage temp: ≤ -18°C
- Content: Coagulation clotting factors, plasma
- QC: N/A
- Indications: Coagulation factors, liver disease, DIC
- Tx criteria: ABO-compatible preferred
PF24, FFP, thawed
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 5 days
- Storage temp: 1-6°C
- Content: stable coag factors
- QC: N/A
- Indications: Stable factors, liver disease, DIC
- Tx criteria: ABO-compatible preferred
AFFP, thawed
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 24 hours
- Storage temp: 1-6°C
- Content: Labile and stable factors
- QC: N/A
- Indications: All coag factors, liver disease, DIC
- Tx criteria: ABO-compatible preferred
Cryo, frozen
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 1 year
- Storage temp: ≤-18°C
- Content: Factor VIII, vWF, XIII, fibrinogen
- QC: ≥ 80 IU VIII; ≥ 150 mg fibrinogen
- Indications: Hemophilia A, vW disease, XIII deficiency, fibrinogen deficiency, fibrin glue
- Tx criteria: ABO compatible preferred
Cryo, thawed
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 6 hours
- Storage temp: Room temperature
- Content: Factor VIII, vWF, XIII, fibrinogen
- QC: ≥ 80 IU VIII; ≥ 150 mg fibrinogen
- Indications: Hemophilia A, vW disease, XIII deficiency, fibrinogen deficiency, fibrin glue
- Tx criteria: ABO compatible preferred
Cryo, thawed and pooled
- Shelf life
- Storage temp
- Content
- QC
- Indications
- Tx criteria
- Shelf life: 4 hours
- Storage temp: Room temperature
- Content: Factor VIII, vWF, XIII, fibrinogen
- QC: ≥ 80 IU VIII; ≥ 150 mg fibrinogen
- Indications: Hemophilia A, vW disease, XIII deficiency, fibrinogen deficiency, fibrin glue
- Tx criteria: ABO compatible preferred
List the anticoagulants that play a part in the survival of donor blood
- Trisodium citrate
- Citric acid
- Dextrose
- Na phosphate
- Adenine
- Mannitol
What is the function of the anticoagulant trisodium citrate?
Binds Ca2+ and prevents clotting
What is the function of the anticoagulant citric acid?
Maintains pH
What is the function of the anticoagulant dextose
Provides energy source
What is the function of the anticoagulant Na phosphate?
Maintains 2,3-DPG levels and ↑ pH
What is the function of the anticoagulant adenine?
↑ ADP levels which results in synthesis of more ATP
What is the function of the anticoagulant mannitol?
Protects against spotnaneous storage hemolysis