Question 1

In which phase of reactivity would rouleaux typically be detected in the screen?

Accepted Answer

A)  4$\circ$C 
B)  15$\circ$ C 
C)  37$\circ$ C 
D)  Antihuman globulin 
A)  4$\circ$C 
B)  15$\circ$ C 
C)  37$\circ$ C 
D)  Antihuman globulin

Question 2

To increase the sensitivity of the antibody screen in a compatibility test, what can be done?

Accepted Answer

A)  Extend the incubation time. 
B)  Increase the serum to cell ratio. 
C)  Use an enhancement such as polyethylene glycol. 
D)  All of the above. 
A)  Extend the incubation time. 
B)  Increase the serum to cell ratio. 
C)  Use an enhancement such as polyethylene glycol. 
D)  All of the above.

Question 3

A group O patient was crossmatched with group B red blood cells. What phase of the crossmatch will first detect this incompatibility?

Accepted Answer

A)  Immediate spin 
B)  37$\circ$ C low-ionic strength solution 
C)  Indirect antiglobulin 
D)  None of them; unit is compatible 
A)  Immediate spin 
B)  37$\circ$ C low-ionic strength solution 
C)  Indirect antiglobulin 
D)  None of them; unit is compatible

Question 4

Compatibility procedures will address all of the following except to:

Accepted Answer

A)  prevent antibody formation. 
B)  prevent life-threatening transfusion reactions. 
C)  maximize in vivo survival rate of red cells. 
D)  check ABO compatibility. 
A)  prevent antibody formation. 
B)  prevent life-threatening transfusion reactions. 
C)  maximize in vivo survival rate of red cells. 
D)  check ABO compatibility.

Question 5

Select the correct statement regarding the collection of a blood sample for compatibility testing.

Accepted Answer

A)  The sample must be labeled at the bedside. 
B)  The sample requires a new numeric identifier for the patient for each admittance. 
C)  The sample may be labeled at any time in an emergency. 
D)  The sample does not require a means to identify the phlebotomist. 
A)  The sample must be labeled at the bedside. 
B)  The sample requires a new numeric identifier for the patient for each admittance. 
C)  The sample may be labeled at any time in an emergency. 
D)  The sample does not require a means to identify the phlebotomist.

Question 6

Antibody screening of the recipient is performed as a component of compatibility testing to detect:

Accepted Answer

A)  red cell alloantibodies. 
B)  irregular antigens on the recipient's red cells. 
C)  human leukocyte antigen antibodies. 
D)  incompatibilities with the donor's red cells. 
A)  red cell alloantibodies. 
B)  irregular antigens on the recipient's red cells. 
C)  human leukocyte antigen antibodies. 
D)  incompatibilities with the donor's red cells.

In which phase of reactivity would rouleaux typically be detected in the screen?

To increase the sensitivity of the antibody screen in a compatibility test, what can be done?

A group O patient was crossmatched with group B red blood cells. What phase of the crossmatch will first detect this incompatibility?

Compatibility procedures will address all of the following except to:

Select the correct statement regarding the collection of a blood sample for compatibility testing.

Antibody screening of the recipient is performed as a component of compatibility testing to detect:

Immunology: Basic Principles and Applications in the Blood Bank

Blood Banking Reagents: Overview and Applications in Immunohematology

Genetic Principles in Blood Banking

Abo and H Blood Group Systems and Secretor Status

Rh Blood Group System

Other Blood Group Systems

Antibody Detection and Identification

Donor Selection and Phlebotomy

Testing of Donor Blood

Blood Component Preparation and Therapy

Adverse Complications of Transfusions

Hemolytic Disease of the Fetus and Newborn

Transfusion Therapy in Selected Patients

Quality Assurance and Regulation of the Blood Industry

Safety Issues in the Blood Bank

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Exam 8: Compatibility Testing

In which phase of reactivity would rouleaux typically be detected in the screen?

To increase the sensitivity of the antibody screen in a compatibility test, what can be done?

A group O patient was crossmatched with group B red blood cells. What phase of the crossmatch will first detect this incompatibility?

Compatibility procedures will address all of the following except to:

Select the correct statement regarding the collection of a blood sample for compatibility testing.

Antibody screening of the recipient is performed as a component of compatibility testing to detect:

Immunology: Basic Principles and Applications in the Blood Bank

Blood Banking Reagents: Overview and Applications in Immunohematology

Genetic Principles in Blood Banking

Abo and H Blood Group Systems and Secretor Status

Rh Blood Group System

Other Blood Group Systems

Antibody Detection and Identification

Donor Selection and Phlebotomy

Testing of Donor Blood

Blood Component Preparation and Therapy

Adverse Complications of Transfusions

Hemolytic Disease of the Fetus and Newborn

Transfusion Therapy in Selected Patients

Quality Assurance and Regulation of the Blood Industry

Safety Issues in the Blood Bank

Filters