Phagocytic cells are characterized by the following EXCEPT:
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61%
Play an important defensive role against established viral infection
6%
Contain digestive enzymes in lysosomes
6%
Have Fc receptors
28%
Produce hydrogen peroxide to kill phagocytosed organisms
A characteristic of the adaptive but not of the innate response is:
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0%
Mechanical barriers
0%
Surface secretions
79%
Clonal expansion of the effector cell
21%
Phagocytosis
All of the following steps are involved in the process of phagocytosis EXCEPT:
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6%
Attachment
0%
Engulfment
17%
Phagolysosome formation
78%
Extracellular killing
All the following statements regarding phagocytosis are true EXCEPT:
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6%
Bacteria are engulfed in a phagosome
83%
Natural killer cells are the most important phagocytic cells
11%
Respiratory burst is lethal to microorganisms
0%
Antibodies or C3b may aid in recognition
All of the following are involved in innate immunity EXCEPT:
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5%
Granulocytes
85%
B lymphocytes
5%
Macrophages
5%
NK cells
Enhanced phagocytosis is known as:
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0%
Agglutination
80%
Opsonization
0%
Neutralization
20%
Antibody-dependent cellular cytotoxicity
Specificity and memory are associated with which of the following body defense mechanisms?
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0%
Inflammatory response
5%
Acute phase proteins
5%
Phagocytosis
89%
T cell and B cell response
A substance that can evoke an immune response is termed;
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75%
Immunogen
20%
Hapten
0%
Tolerogen
5%
Adjuvant
All of the following statements body haptens are correct EXCEPT:
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0%
They are low molecular weight substances
11%
They are incapable of inducing an immune response alone
74%
They are non-specific potentiators of the immune response
16%
Penicillin is an example of a hapten
A substance that can stimulate an immune response only is coupled to a carrier molecule is called:
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0%
Immunogen
5%
Antigen
90%
Hapten
5%
Antigenic determination
0%
Adjuvant
Antigenicity is increased by all of the following EXCEPT:
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16%
Chemical complexity of antigen
5%
Being protein in nature
74%
Very high dose of antigen
5%
Large size of antigen
What makes a substance more immunogenic:
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5%
its administration in a very high dose
9%
Its administration by the intravenous route
68%
Its natural chemical complexity
18%
Its similarity to host cellular antigens
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The following drug is used in treatment of benzodiazepine toxicity:
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12%
a) Zoledronic acid
8%
b)Naloxone
20%
C)Flurazepam
60%
d)Flumazenil
The following drug is an ultra-short acting barbiturate used in IV anesthesia:
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0%
Buspironeο»Ώο»Ώο»Ώ
17%
Phenobarbitone
78%
Thiopentone
6%
Propranolol
A patient was prescribed a typical antipsychotic. Upon intake of the antipsychotic, he suffered fever, exceeding 40Β°C and uncontrolled tremors as if shivering. He was diagnosed as having neurolept malignant syndrome. What should he be prescribed to resolve such medical emergency?