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10 Cards in this Set

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What is Pre-Transfusion Testing?

A series of testing process include ABO and Rh typing of recipient's red cells to give best result of a blood transfusion.

Why Pre-Transfusion Testing is needed?

- To select blood component with acceptable survival.


- To detect clinically significant unexpected antibodies.

What is clinically significant antibodies?

- Reactive at 37 degree celsius


- Reactive in the Antihuman Globulin (AHG) Test


- Caused transfusion reaction



Why it is necessary to do antibody screening in Pre-Transfusion Testing?

To test the patient's serum before transfusion to ensure patients has no significant antibodies to react with donor cells.

What is the phase of test should be written in the result section of an antigram if the test is done using gel card?

Only AHG Phase.

In antibody identification, why we need to do Coombs Control Cells (CCC) for negative result in AHG phase?

- To make sure whether the AHG has been added.


- To make sure the AHG used is working.

What is the last two steps of Pre-Transfusion Testing?

- Selection of appropriate blood product


- Cross matching

For red blood cell (RBC) transfusion, what is the second choice if the recipient is blood group AB?

Component with blood group A

What are the types of cross matching?
- Immediate spin

- Computer crossmatch


- Serologic (antiglobulin) crossmatch

When should the Group Screen and Hold (GSH) compatibility test be used?

- When involve only minor surgery


- When antibody screening is negative