Toxicology_L13,14 Food poisoning

 L13,14, Food poisoning


1. As regard infant Botulism all true except

a) It is the most common form
b) Honey is implicated in some cases
c) Symptoms are less dangerous than food born
d) Poisoning is usually due to ingestion of already performed toxin

2. Botulism is characterized by presence of

a) Altered mental status
b) Fever.
c) Dilated fixed pupil.
d) Tachycardia.

3. Referred to trivalent botulinum antitoxin, all are true except

a) Effective in food born and intestinal botulism.
b) Not effective in infant botulism.
c) Rapidly reverse established neurological manifestations.
d) Hypersensitivity reaction is a common adverse effect.

4. As regard botulism all true except
a) Mental status and alertness are preserved

b) Ingestion of food containing the performed toxin is the most serious form
c) The formed toxin inhibits the cholinesterase enzyme leads to cholenergic crisis
d) Ocular manifestations include diplopia, blurring of vision anddilated fixed pupils.

5. All of the following is true about botulinum toxin except:

a) It is a neurotoxin
b) Produced by gram negative organism
c) Produced by forming organis
d) Produced by anaerobic organism

6. All of the following are true about botulin toxin except:

a) There are 8 serological types
b) Reversibly bind to its receptor.
c) Elaborated in the intestine
d) Present in uncooked, salted fish

7. All of the following is true about the mechanism of action of botulism except:

a) Has a curare like action
b) Impairs the presynaptic release of acetylcholine
c) Toxin binds reversibly to the neuromuscular junction
d) Due to preformed toxin.

8. Cases of botulism present with the following except:

a) Dry mouth
b) Fever
c) Abdominal pain
d) Constipation

9. Cases of botulism neurotoxicity present with the following except:

a) Asymmetrical muscle weakness
b) Bilateral muscle weakness
c) Descending muscle weakness
d) Squint

10. Cases of botulism present with the following except:

a) Dry mouth
b) Diarrhea
c) tachycardia.
d) Dysphagia
e) b&c

11 Cases of botulism present with the following except:

a) Squint
b) Salivation
c) Diarrhea
d) Constipation
e) b&c

12 Cases of botulism present with the following except:

a) Diaphoresis
b) Dysarthria
c) Dysphagia
d) Dysphonia

13. The GIT manifestations of food born botulism are all of the following except:

a) Dry mouth.
b) Diarrhea.
c) Abdominal pain.
d) Dysphagia.

14. The Mechanism of action of botulism is

a) Increasing release of acetylcholine
b) Reversible binding of the peripheral neuromuscular junction
c) Achieving presynaptic block
d) Achieving postsynaptic block

15. Cases of botulism present with all the following except

a) Dysphagia
b) Constricted pupils
c) Diplopia
d) Constipation