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Blood Components
Lecture 9/24
31
Medical
Professional
09/27/2013

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Term
What is the Volume, Typical Hct, platelet/granulocyte activity, and use of Whole Blood?
Definition
450-500mL at 35-45% hct; Platelets and Granulocytes are non-functional and Whole blood is used for volume replacement with simultaneous increased O2 capacity
Term
Draw out the Type and Screen process for Transfusion (15)
Definition
15
Term
ABO blood groups
Definition
A (have A antigen but anti-B antibodies) B (have B antigen but anti-A antibodies) O (no antigen but anti-A and B antibodies), AB (neither A nor B antigens, the universal donor)
Term
What are some of the crossmatch limitations?
Definition
Not all antibodies are detected, not all ABO/Rh errors can be detected, Transfused RBC survival is not ensured, and it is possible to have a Transfusion Reaction
Term
What is the Indication for giving RBCs?
Definition
Increase O2 carrying capacity
Term
What are the Limitations for giving RBCs?
Definition
Not for nutritional deficiency, Volume repletion, or platelet/granulocyte repletion
Term
How are Washed RBCs prepared?
Definition
Wash RBCs with saline to remove plasma proteins and then resuspend in saline to 75% Hct
Term
What are the indications for giving Washed RBCs?
Definition
Allergic reactions, Severe IgA deficiency due to anti-IgA antibodies, or Infants with agglutinins
Term
What is the main concern (precaution) that should take place when transfusing blood?
Definition
Proper labeling of blood type/patient
Term
What all should specimen labeling contain?
Definition
Full name, MRN, Date of Collection, and Phlebotomist's initials
Term
What are the two different forms in which platelets are acquired?
Definition
Apheresis platelets (single donors) and Random-donor platelets (Whole blood from 4-8 adults)
Term
What are the Indications for Giving Platelets?
Definition
Active bleeding in thrombocytopenic patients, Platelet disorders, Surgeries
Term
What are the Contraindications for giving Platelets?
Definition
HIT, type IIB vWD, ITP/TTP
Term
What are the 5 major factors affecting platelet Increment (increases)?
Definition
1) Fever, 2) Sepsis, 3) Hypersplenism, 4) Consumptive Coagulopathy (DIC), 5) Platelet antibodies (HLA or autoimmune)
Term
What is the Indications of giving Fresh Frozen Plasma (FFP)?
Definition
Coagulation factor replacement
Term
What is fresh frozen plasma NOT administered for, and what may it exacerbate?
Definition
Not for Volume or Protein replacement; FFP may exacerbate DIC
Term
What is the limitation of giving fresh frozen plasma?
Definition
It is not a concentrate
Term
How is Fresh Frozen Plasma prepared?
Definition
apheresis or centrifugation of whole blood frozen within 8 hours
Term
What does Fresh Frozen Plasma contain?
Definition
All clotting factors, albumin, and fibrinogen
Term
What are the indications of giving Fresh Frozen Plasma?
Definition
Coagulopathy of liver disease, DIC, Warfarin OD, and other Rare coagulopathies
Term
What blood type is given in trauma situations and what is the ratio?
Definition
O- blood; 2 Packed RBCs : 1 FFP
Term
What are the indications for giving Cryoprecipitate, and how many units will a typical adult require?
Definition
Hypofibrinogenemia, DIC, Factor XIII deficiency; 8-10 units required for normal adult
Term
What is the major indication for giving Albumin/Plasma Protein Fraction?
Definition
Treatment for Acute Hypovolemia
Term
What are the limitation for giving Albumin/Plasma Protein Fraction?
Definition
Don't give for Chronic Hypovolemia and never for hypervolemia
Term
What are the indications for giving Granulocytes?
Definition
Fever and Severe Neutropenia after at least 48 hours of attempted antibiotic therapy. Additionally, the recipient must have Reversible bone marrow hypoplasia, otherwise it is just prolonging the inevitable
Term
What virus has a high prevalence in the population and may cause infection in transfusion recipients?
Definition
CMV
Term
Why might a screen for CMV come back negative, but a recipient of the blood still contract CMV?
Definition
The donor may be in the window (seroconverter) phase from a recent infection
Term
What are the indications for giving CMV-seronegative blood?
Definition
In utero transfusion or transfusion to babies
Term
What are the two methods to prevent Transfusion Transmitted CMV?
Definition
1) Leukocyte Reduction by pre-storage filtration (that is, remove the leukocytes before giving blood because that is where CMV resides) or 2) Use CMV - blood
Term
What is the goal of Leukocyte-Reduced RBCs?
Definition
Decrease the risk of CMV transmission
Term
What is the goal of Irradiating leukocytes in donor blood?
Definition
To avoid Graft vs Host Disease in patients that are immunocompromised
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