Question 1

What is the source of anti-A1 lectin?

Accepted Answer

A)  Bandeiraea simplicifolia 
B)  Dolichos biflorus 
C)  Ulex europaeus 
D)  All of the above 
A)  Bandeiraea simplicifolia 
B)  Dolichos biflorus 
C)  Ulex europaeus 
D)  All of the above

Question 2

If a group O mother gives birth to a group A baby, which of the following antibodies is usually responsible for crossing the placenta and causing hemolytic disease of the newborn (HDN)?

Accepted Answer

A)  Anti-AB 
B)  Anti-B 
C)  Anti-A 
D)  Anti-H 
A)  Anti-AB 
B)  Anti-B 
C)  Anti-A 
D)  Anti-H

Question 3

Secretor studies were performed on a person who expressed weak reactions in forward grouping. Only B and H substance were present in the saliva. What is this person's ABO group?

Accepted Answer

A)  O 
B)  A 
C)  B 
D)  AB 
A)  O 
B)  A 
C)  B 
D)  AB

Question 4

Forward grouping is defined as:

Accepted Answer

A)  detecting antibody on an individual's red blood cells via reagent antisera. 
B)  detecting antigen(s) on an individual's red blood cells via reagent antisera. 
C)  detecting ABO group antibody via reagent red blood cells. 
D)  detecting ABO group antigen via reagent red blood cells. 
A)  detecting antibody on an individual's red blood cells via reagent antisera. 
B)  detecting antigen(s) on an individual's red blood cells via reagent antisera. 
C)  detecting ABO group antibody via reagent red blood cells. 
D)  detecting ABO group antigen via reagent red blood cells.

Question 5

How is polyagglutination resolved?

Accepted Answer

A)  Absorption of Tn antigen with anti-T 
B)  Patient serum is tested with a lectin panel 
C)  Patient cells are tested with a lectin panel 
D)  Elution of Tn antigen with chloroquine 
A)  Absorption of Tn antigen with anti-T 
B)  Patient serum is tested with a lectin panel 
C)  Patient cells are tested with a lectin panel 
D)  Elution of Tn antigen with chloroquine

Question 6

The ABO group antibodies are primarily:

Accepted Answer

A)  alloantibodies. 
B)  autoantibodies. 
C)  naturally occurring. 
D)  drug induced. 
A)  alloantibodies. 
B)  autoantibodies. 
C)  naturally occurring. 
D)  drug induced.

Question 7

How are ABH antigens formed?

Accepted Answer

A)  Production of specific glycosyltransferases add sugars to precursor substances 
B)  Recombinant gene technology 
C)  ABO genes code for production of antigens 
D)  All of the above 
A)  Production of specific glycosyltransferases add sugars to precursor substances 
B)  Recombinant gene technology 
C)  ABO genes code for production of antigens 
D)  All of the above

Question 8

What immunodominant sugar is responsible for H specificity?

Accepted Answer

A)  D-galactose 
B)  L-fucose 
C)  N-acetyl-D-galactosamine 
D)  D-glucose 
A)  D-galactose 
B)  L-fucose 
C)  N-acetyl-D-galactosamine 
D)  D-glucose

Question 9

Why is reverse grouping not performed on cord blood specimens?

Accepted Answer

A)  Antigens are not present at birth. 
B)  Antibodies are generally not present at birth. 
C)  Antibody titer is too high. 
D)  Antigens are too weak. 
A)  Antigens are not present at birth. 
B)  Antibodies are generally not present at birth. 
C)  Antibody titer is too high. 
D)  Antigens are too weak.

Question 10

All of the following may result in rouleaux formation except:

Accepted Answer

A)  Waldenstrom's macroglobulinemia. 
B)  Wharton's jelly in cord blood. 
C)  leukemia. 
D)  dextran. 
A)  Waldenstrom's macroglobulinemia. 
B)  Wharton's jelly in cord blood. 
C)  leukemia. 
D)  dextran.

What is the source of anti-A₁ lectin?

If a group O mother gives birth to a group A baby, which of the following antibodies is usually responsible for crossing the placenta and causing hemolytic disease of the newborn (HDN)?

Secretor studies were performed on a person who expressed weak reactions in forward grouping. Only B and H substance were present in the saliva. What is this person's ABO group?

Forward grouping is defined as:

How is polyagglutination resolved?

The ABO group antibodies are primarily:

How are ABH antigens formed?

What immunodominant sugar is responsible for H specificity?

Why is reverse grouping not performed on cord blood specimens?

All of the following may result in rouleaux formation except:

Red Blood Cells and Platelet Preservation: Historical Perspectives and Current Trends

Basic Genetics

Fundamentals of Immunology

Concepts in Molecular Biology

The Antiglobulin Test

The RH Blood Group System

Blood Group Terminology and the Other Blood Groups

Detection and Identification of Antibodies

Pre-Transfusion Testing

Overview of the Routine Blood Bank Laboratory

Other Technologies and Automation

Donor Screening and Component Preparation

Apheresis

Transfusion Therapy

Cellular Therapy

Transfusion-Transmitted Diseases

Hemolytic Disease of the Fetus and Newborn

Autoimmune Hemolytic Anemias

The Hla System

Relationship Testing

Quality Management

Transfusion Safety and Federal Regulatory Requirements

Utilization Management

Laboratory Information Systems

Medicolegal and Ethical Aspects of Providing Blood Collection and Transfusion Services

Tissue Banking: A New Role for the Transfusion Service

Filters

Exam 6: The Abo Blood Group System

What is the source of anti-A1 lectin?

If a group O mother gives birth to a group A baby, which of the following antibodies is usually responsible for crossing the placenta and causing hemolytic disease of the newborn (HDN)?

Secretor studies were performed on a person who expressed weak reactions in forward grouping. Only B and H substance were present in the saliva. What is this person's ABO group?

Forward grouping is defined as:

How is polyagglutination resolved?

The ABO group antibodies are primarily:

How are ABH antigens formed?

What immunodominant sugar is responsible for H specificity?

Why is reverse grouping not performed on cord blood specimens?

All of the following may result in rouleaux formation except:

Red Blood Cells and Platelet Preservation: Historical Perspectives and Current Trends

Basic Genetics

Fundamentals of Immunology

Concepts in Molecular Biology

The Antiglobulin Test

The RH Blood Group System

Blood Group Terminology and the Other Blood Groups

Detection and Identification of Antibodies

Pre-Transfusion Testing

Overview of the Routine Blood Bank Laboratory

Other Technologies and Automation

Donor Screening and Component Preparation

Apheresis

Transfusion Therapy

Cellular Therapy

Transfusion-Transmitted Diseases

Hemolytic Disease of the Fetus and Newborn

Autoimmune Hemolytic Anemias

The Hla System

Relationship Testing

Quality Management

Transfusion Safety and Federal Regulatory Requirements

Utilization Management

Laboratory Information Systems

Medicolegal and Ethical Aspects of Providing Blood Collection and Transfusion Services

Tissue Banking: A New Role for the Transfusion Service

Filters

What is the source of anti-A₁ lectin?