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15. Which major antibody molecule has the ability to cross the placenta
Anonymous Quiz
86%
(A) IgG
3%
(B) IgA
9%
C) IgM
0%
D) IgE
2%
E) IgD
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16. A man in his twenties presents in the emergency room with
shortness of breath and fatigue. He is also very pale. Two days
earlier he was given penicillin for an infection. He had penicillin
previously without problems and stated that he had “no
allergy” to penicillin. Laboratory testing shows that antibodies
to penicillin are present in the patient’s serum and that he is
breaking down his own red blood cells. He is diagnosed with
immune hemolytic anemia
shortness of breath and fatigue. He is also very pale. Two days
earlier he was given penicillin for an infection. He had penicillin
previously without problems and stated that he had “no
allergy” to penicillin. Laboratory testing shows that antibodies
to penicillin are present in the patient’s serum and that he is
breaking down his own red blood cells. He is diagnosed with
immune hemolytic anemia
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
كل مايخص طلاب الطب💜
16. A man in his twenties presents in the emergency room with shortness of breath and fatigue. He is also very pale. Two days earlier he was given penicillin for an infection. He had penicillin previously without problems and stated that he had “no allergy”…
The patient has which type of hypersensitivity reaction?
Anonymous Quiz
38%
(A) Type I
44%
(B) Type II
13%
(C) Type III
5%
(D) Type IV (DTH)
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17. Which one of the following cell types expresses receptors for
IgE on its cell surface that stimulate the cell to mount a response
to parasites such as worms?
IgE on its cell surface that stimulate the cell to mount a response
to parasites such as worms?
Anonymous Quiz
13%
(A) T cells
8%
(B) B cells
10%
(C) NK cells
68%
(D) Mast cells
2%
(E) Dendritic cells
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18. IgE-mediated histamine release is classified as what type of
hypersensitivity reaction?
hypersensitivity reaction?
Anonymous Quiz
68%
(A) Type I
14%
(B) Type II
13%
(C) Type III
5%
(D) Type IV
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19. Which two cytokines play an important role in attracting neutrophils
to the site of an infection?
to the site of an infection?
Anonymous Quiz
16%
(A) IFN-alpha and IFN-gamma
62%
(B) IL-8 and IL-17
9%
(C) IL-2 and IL-4
13%
(D) IL-6 and IL-12
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20. Which one of the following laboratory assays is considered to be
an in vitro counterpart of the type IV hypersensitivity reactions
seen in the TB skin test?
an in vitro counterpart of the type IV hypersensitivity reactions
seen in the TB skin test?
Anonymous Quiz
25%
(A) Immunoblot for TB antigen
8%
(B) EIA analysis of sera from TB patient
39%
(C) Immunofluorescence assay for TB antibody
27%
(D) IFN-gamma production by white blood cell (WBC) treated with TB antigen
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
21. Which of the following laboratory assays can be used to detect
the number and types of immune cells in the peripheral blood?
the number and types of immune cells in the peripheral blood?
Anonymous Quiz
37%
(A) Immunofixation electrophoresis
13%
(B) EIA
40%
(C) Flow cytometry
10%
(D) Immunoblot
Forwarded from كل مايخص طلاب الطب💜 (شِــفاء حــمد)
22. PD-1 and CTLA-4 are targets for cancer immune therapy and
are both expressed on what cell type:
are both expressed on what cell type:
Anonymous Quiz
7%
(A) Plasma cells
12%
(B) Mast cells
3%
(C) Neutrophils
27%
(D) Activated T cells
52%
E) Tumor cells