Crossmatch Quiz

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Crossmatch Quiz

 

 

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Category: Bloodbank

1. An ABO type and screen on a patient give the following reactions. Assume the antibody screen is positive.

Anti-A Anti- B Anti- D Rh A1 cell B cell
4+ 0 4+ 0 0 3+

Which donor unit should be selected?

Immediate Spin    37oC Antiglobulin Phase
A positive 0 Not tested Not tested
A negative 0 0 0; Check cell 2+
AB negative 0 0 0; Check cell 0
B negative 2+ 2+ 2+

 

 

 

 

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Category: Bloodbank

2. What type of crossmatch should be performed? Below is the result of an antibody screen.

Screening cell 1 Screening cell 2 Screening cell 3
0 0 0

 

 

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Category: Bloodbank

3. What is the purpose of a crossmatch?

 

 

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Category: Bloodbank

4. What type of crossmatch should be performed? Below is the result of an antibody screen

Screening cell 1 Screening cell 2 Screening cell 3
0 0 2+

 

 

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Category: Bloodbank

5. An ABO type and screen on a patient give the following reactions. Assume the antibody screen is negative.

 

Anti-A Anti- B Anti- D Rh  A1 cell B cell
4+ 0 4+ 0 0 3+

 

Which unit should be used to perform crossmatch?                                                          Immediate spin

A Positive 3+
A negative 3+
B negative 1+

 

 

6 / 6

Category: Bloodbank

6. An ABO type and screen on a patient give the following reactions. Assume the antibody screen is negative.

 

Anti-A Anti- B Anti- D Rh  A1 cell B cell
4+ 4+ 0 0 0 0

 

Which unit should be used to perform crossmatch?

Immediate spin
AB Negative 0
A negative 3+
B negative 1+

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