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immunology Test #121-168

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1.
1 point
Macrophage phagocytosis of bacteria is enhanced by which of the following:
2.
1 point
Which of the following is the larger residual split portion of C3
3.
1 point
The MOST commonly used serological indicator of recent streptococcal infection is the antibody to:
4.
1 point
It is important to note that when an infant is born, levels of specific antibody of the following class are used to indicate neonatal infection:
5.
1 point
The key structural difference that distinguishes immunoglobulin subclasses is the:
6.
1 point
Which of the following immunoglobulins is the MOST efficient at agglutination?
7.
1 point
The immunoglobulin class typically found to be present in saliva, tears and other secretions is:
8.
1 point
Which of the following is MOST likely to activate the alternative pathway of complement activation?
9.
1 point
Antibodies are produced by:
10.
1 point
After a penicillin injection, a patient rapidly develops respiratory distress, vomiting and hives. This reaction is primarily mediated by:
11.
1 point
Which of the following immunoglobulin classes is associated with a secretory component (transport piece)?
12.
1 point
Which of the following immunoglobulins is present in the highest concentration in normal human serum?
13.
1 point
IgM antibodies are frequently hemolytic because of:
14.
1 point
Which of the following is the "recognition unit" in the classical complement pathway?
15.
1 point
Measurement of serum levels of which of the following immunoglobulins can serve as a screening test for multiple allergies
16.
1 point
Which of the following releases histamine and other mediators from basphils?
17.
1 point
Which of the following statements about immunoglobulins is true?
18.
1 point
Antibodies composed of IgG immunoglobulin:
19.
1 point
In immunofixation electrophoresis:
20.
1 point
The immunoglobulin class associated with immediate hypersensitivity or atopic reactions is:
21.
1 point
A single, reliable screening test for detecting neonatal infection in the absence of clinical signs is:
22.
1 point
The J- chain is associated with which of the following immunoglobulins?
23.
1 point
Which IgG subclass is MOST efficient at crossing the placenta
24.
1 point
Which of the following is the "membrane attack complex" of complement activation?
25.
1 point
The IgM is a:
26.
1 point
Which laboratory technique is MOST frequently used to diagnose and follow the course of therapy of a patient with secondary syphilis?
27.
1 point
Treatment of IgG with papain results in how many fragments from each immunoglobulin molecule
28.
1 point
Antibody allotype is determined by the:
29.
1 point
Cells that are precursors of plasma cells and also produce immunoglobulins are:
30.
1 point
Antibody class and antibody subclass are determined by major physiochemical differences and antigenic variation found primarily in the:
31.
1 point
Antibody idiotype is dictated by the:
32.
1 point
Which of the following activities is associated with C3b?
33.
1 point
The air temperature throughout the serology laboratory is 20 C. How will this affect VDRL and RPR test results?
34.
1 point
To which of the following classes do the antibodies that cause hemolytic disease of the newborn belong?
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