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SBB Practice Test Review – Complete Study Guide
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SBB Practice Test Review – Complete Study Guide
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SBB Practice Test Review – Complete Study Guide When preparing cryoprecipitate from plasma, the cryoprecipitate must be refrozen within? - ✔ 1 hourDonated blood may not be used for allogeneic transfusion when HCV testing shows? - ✔ EIA initial testing reactive, and one of the duplicate repeat results is reactive
The following hepatitis B testing results indicates: HBsAg: Nonreactive, Anti-
HBc: Reactive, Anti-HBs: Reactive, RNA HBV: nonreactive. - ✔ Recurring infection (CDC says immune due to natural infection)
The antigen that occurs in approximately 20% of individuals of African ethnicity is? - ✔ Js a
The Diego blood group is of anthropological interest because? - ✔ Di a is more frequent in individuals of Mongolian ancestry
Which antigen is a CR1? - ✔ McC c
MHC Class II are found on? - ✔ Dendritic Cells
Antigen-presenting cells such as dendritic cells, mononuclear phagocytes, some endothelial cells, thymic epithelial cells, and B cells.
The Fc receptor on phagocytes that has the highest affinity for binding IgG is? - ✔ FcR1
The hospital blood banks that collect blood but do not ship across state lines must be - ✔ Registered with the FDA
The best education objective for a course to teach simple repair of instruments is - ✔ Repair 9 of 10 machine malfunctions You are the supervisor in a transfusion service. One of your employees had just finished compatibility testing and was preparing to take a break. This employee never washed his hands before leaving the lab or after removing his
gloves. You should - ✔ Plan an in-service for all employees concerning proper procedure for Universal Precautions.
A 73 lb female is donating a 500mL autologous unit for her surgery in two weeks. How much anticoagulant should be removed from the primary container? - ✔ 24 mLs
Prothrombin complex is indicated for the treatment of what disease? - ✔ Severe Christmas Disease (Factor 9)
In a presurgical work-up, a patient's platelet count was normal and the Pt, PTT, and TT were slightly prolonged. Inspection of the clot from the PT and PTT shows poor clot formation. Which factor is most likely deficient? - ✔ Factor XIII (Fibrin Stabilizing Factor)
Because of the short in vivo half-life of this factor, FFP should be strategically transfused immediately before a surgical procedure. - ✔ Factor VII (2-
5 hour half-life)
The amount of the antigen being measured that is exceeding the amount of antibody in enzyme-linked immunosorbent assay can cause a technical problem called: - ✔ Hook effect
In enzyme-linked immunosorbent assay for hepatitis B surface antigen, the second antibody linked to a reporter enzyme is best described as? - ✔ Conjugate
Initial testing at immediate spin tube testing gives the following results. Of the
following choices, which is the most probable cause of these reactions? Anti A - 0; Anti B- 0; Anti D - 3+; A1 cells - 4+; B cells - 4+; O cells - 4 +; Auto CT
- 0 - ✔ Group O with unexpected antibody
To differentiate anti-Fy3 from anti-Fy-5, one should test which cells? - ✔ Fy(a+b+), Rh null
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