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Indicate which immunoglobulin class (IgG or IgM) best represents the property.
Warm Reactive
IgG
Indicate which immunoglobulin class (IgG or IgM) best represents the property.
Detectible at immediate spin
IgM
Indicate which immunoglobulin class (IgG or IgM) best represents the property.
Small enough to cross the placenta, potentially causing HDFN
IgG
Indicate which immunoglobulin class (IgG or IgM) best represents the property.
Best at fixing compliment
IgM
Indicate which immunoglobulin class (IgG or IgM) best represents the property.
First one seen in the primary immune response
IgM
Which protein in the compliment system is identifiable on the red cell surface after compliment has been activated?
A. C9
B. C5
C. C3b
D. IgM
C. C3b
What percent of offspring are predicted to be blood type A from this pairing:
1 parent = BO
1 parent = AA
A. 100%
B. 50%
C. 25%
D. 0%
B. 50%
An antigen is expressed on the outside surface of the red cell. Which statement is true regarding the gene for the blood group?
A. The patient has 2 homozygous genes for the antigen
B. The gene for the antigen is dominantly expressed
C. The patient's gene codes for the allele of the specific antigen
D. The gene is heterozygous for the allele
C. The patient's gene codes for the allele of the specific antigen
For the following red cell chemical properties, indicate whether they are increased or decreased during the storage lesion.
Glucose
Decreased
For the following red cell chemical properties, indicate whether they are increased or decreased during the storage lesion.
ATP
Decreased
For the following red cell chemical properties, indicate whether they are increased or decreased during the storage lesion.
Lactic Acid
Increased
For the following red cell chemical properties, indicate whether they are increased or decreased during the storage lesion.
pH
Decreased
For the following red cell chemical properties, indicate whether they are increased or decreased during the storage lesion.
2,3 DPG
Decreased
For the following red cell chemical properties, indicate whether they are increased or decreased during the storage lesion.
Plasma Potassium
Increased
True or False: additive solutions increase the shelf life of red cell products by requiring the removal of plasma from the red cells
False
Which grade would you give to an agglutinate that has a single large chunk and several smaller chunks in the tube?
A. 4+
B. 3+
C. 2+
D. 1+
E. 0
B. 3+
Given the following reaction results, is the antigen present or absent?
Positive Control with Anti-C: 3+
Negative Control with Anti-C: 0
Patient Cells with Anti-C: 2+
A. Present
B. Absent
C. Inconclusive
A. Present
Which of the following occurs during storage of RBCs? Select all that apply.
A. pH decreases
B. 2,3-DPG increases
C. ATP increases
D. Plasma K+ increases
A. pH decreases
D. Plasma K+ increases
Which of the following immunoglobulins is most efficient at causing direct hemmaglutination?
A. IgG
B. IgM
C. IgA
D. IgE
IgM
A nurse just called to add on a cross-match to a pre-transfusion specimen you worked on 4 days ago. What is the most appropriate course of action?
A. Check to see if volume is sufficient in original sample to complete the work-up
B. Perform compatibility testing on original specimen
C. Indicate to the nurse that a new specimen needs to be collected for pre-transfusion testing
D. Repeat type and screen testing on original sample to see if the patient has made any antibodies after transfusion
C. Indicate to the nurse that a new specimen needs to be collected for pre-transfusion testing
Patient plasma with donor red cells produced an agglutination reaction of 1+. How do you interpret this?
A. The reaction is weak, the patient can probably tolerate the donor cells
B. The donor blood is compatible with patient plasma
C. The donor plasma is compatible with patient blood
D. The donor blood is incompatible with patient plasma
D. The donor blood is incompatible with patient plasma
Which reagent has antigen in it (select all that apply)?
- Check Cell
- A1 Cell
- Anti-B
- Anti-IgG
- Anti-A
- Anti-A,B
- B Cell
Check Cell, A1 Cell, B Cell
For tube testing, which reagent is added first?
A. Cell
B. Antibody
B. Antibody
Match the agglutination description with the grade: 0
A. Agglutinates remove easily in large chunks as cell button is shaken
B. All cells stick together in one solid chunk
C. Cells appear to remove from the cell button as smoke
D. Many small agglutinates in a clear background
E. As cell button is shaken, agglutinates appear to come off as cookie bites
C. Cells appear to remove from the cell button as smoke
Match the agglutination description with the grade: 1+
A. Agglutinates remove easily in large chunks as cell button is shaken
B. All cells stick together in one solid chunk
C. Cells appear to remove from the cell button as smoke
D. Many small agglutinates in a clear background
E. As cell button is shaken, agglutinates appear to come off as cookie bites
E. As cell button is shaken, agglutinates appear to come off as cookie bites
Match the agglutination description with the grade: 2+
A. Agglutinates remove easily in large chunks as cell button is shaken
B. All cells stick together in one solid chunk
C. Cells appear to remove from the cell button as smoke
D. Many small agglutinates in a clear background
E. As cell button is shaken, agglutinates appear to come off as cookie bites
D. Many small agglutinates in a clear background
Match the agglutination description with the grade: 3+
A. Agglutinates remove easily in large chunks as cell button is shaken
B. All cells stick together in one solid chunk
C. Cells appear to remove from the cell button as smoke
D. Many small agglutinates in a clear background
E. As cell button is shaken, agglutinates appear to come off as cookie bites
A. Agglutinates remove easily in large chunks as cell button is shaken
Match the agglutination description with the grade: 4+
A. Agglutinates remove easily in large chunks as cell button is shaken
B. All cells stick together in one solid chunk
C. Cells appear to remove from the cell button as smoke
D. Many small agglutinates in a clear background
E. As cell button is shaken, agglutinates appear to come off as cookie bites
B. All cells stick together in one solid chunk