The following are target endpoints for atropine therapy in organic
phosphate poisoning EXCEPT:
phosphate poisoning EXCEPT:
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70%
a. Bradycardia < 60 beats / minute
10%
Dry axilla and muoth
10%
Mydriasis
10%
SBP>80 mmHg
Choose the incorrect statement about M2 receptors
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24%
Main site is the heart
6%
Present presynaptically on the cholinergic neurons
45%
They are Gs coupled
18%
They decrease intracellular cAMP
6%
Open k channels causing hyperpolarization
Atropine has the following pharmacological effects EXEPT:
Anonymous Quiz
3%
a. Decreases gastric acid secretion
13%
b. Has a mydriatic effect
79%
c. Produces bronchoconstriction
5%
d. Increases the heart rate
Hyoscine differs from atropine in that it:
Anonymous Quiz
61%
a. Exerts depressant effects on the CNS at relatively low doses
7%
b. Contraindicated in thyrotoxicosis
25%
c. Is longer acting
7%
d. Has weaker antimotion sickness activity
Rivastigmine is anticholinesterase used in the treatmnet of
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0%
Glaucoma
75%
Alzheimer disease
13%
Bronchial asthma
13%
Myasthenia gravis
Atropine produces all the following actions on the eye except
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9%
Increase IOP
15%
passive mydriasis
12%
Cycloplegia
65%
Effect ends after 7 to 10 hrs
The first vascular response to injury is:
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2%
a) Slowing of the circulation
7%
b) Venular dilation
2%
c) Recruitment of vascular beds
0%
d) Capillary engorgement
89%
e) Arteriolar vasoconstriction
16. The epithelioid cells of granulomas are:
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7%
a) Fibroblasts
87%
b) Modified macrophages
2%
c) Plasma cells
4%
d) Lymphocytes
. The first vascular response to injury is:
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0%
a) Slowing of the circulation
4%
b) Venular dilation
0%
c) Recruitment of vascular beds
2%
d) Capillary engorgement
94%
e) Arteriolar vasoconstriction
. Regarding chemical mediators of inflammation:
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12%
a) Histamine is particularly produced by basophils
34%
b) Leukotrienes is a potent chemotactic agent for platelets
17%
c) C3a and C3b increase vascular permeability
37%
d) Leukotrienes are produced by neutrophils and some
7. Vascular hyperemia:
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60%
a) is caused by inflammatory mediators
0%
b) results in cyanosis
40%
c) results in oedema
0%
d) results in brown induration
15. In acute inflammation, which is the correct sequence of events with regard to vascular flow and caliber?
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2%
a) Vasodilation, margination, stasis, vasoconstriction
2%
b) Vasoconstriction, stasis, margination, vasodilation
93%
d) Vasoconstriction, vasodilation, stasis, margination
2%
e) Vasodilation, vasoconstriction, stasis, margination
0%
c) Vasodilation, stasis, vasoconstriction, marginaiton
17. Chronic inflammation is characterized by all of the below except:
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5%
a) Tissue destruction
67%
b) Marked edema
7%
c) Fibrosis
21%
d) Increased tissue concentration of lymphocytes
. Which of these is not a clinical feature of inflammation?
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4%
a) redness
85%
b) necrosis
6%
c) pain
4%
d) heat
. What is the name for the protein-rich extravascular fluid produced in inflammation?
Anonymous Quiz
3%
a) transudate
3%
b) blood
0%
c) pus
95%
d) exudate
35. During the early stages of the inflammatory response, histamine induced increased vascular permeability is most likely to occur in
Anonymous Quiz
8%
a) Arteries
30%
b) Pre-capillary arterioles
10%
c) Capillaries
43%
d) Post-capillary venules
10%
e) Veins
36. Which one of the listed substances is produced by the action of lipoxygenase on arachidonic acid, is a potent chemotactic factor for neutrophils, and causes aggregation and adhesion of leukocytes?
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11%
a) C5a
6%
b) Prostacyclin
6%
c) IL-8
8%
d) Thromboxane A2
69%
e) Leukotriene B4