Questions and Answers 100% Correct
When preparing cryoprecipitate from plasma, the cryoprecipitate must be refrozen
within? - CORRECT ANSWER-1 hour
Donated blood may not be used for allogeneic transfusion when HCV testing shows? -
CORRECT ANSWER-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. - CORRECT ANSWER-
Recurring infection (CDC says immune due to natural infection)
The antigen that occurs in approximately 20% of individuals of African ethnicity is? -
CORRECT ANSWER-Js a
The Diego blood group is of anthropological interest because? - CORRECT ANSWER-
Di a is more frequent in individuals of Mongolian ancestry
Which antigen is a CR1? - CORRECT ANSWER-McC c
MHC Class II are found on? - CORRECT ANSWER-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? -
CORRECT ANSWER-FcR1
The hospital blood banks that collect blood but do not ship across state lines must be -
CORRECT ANSWER-Registered with the FDA
The best education objective for a course to teach simple repair of instruments is -
CORRECT ANSWER-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 - CORRECT
ANSWER-Plan an in-service for all employees concerning proper procedure for
Universal Precautions.