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L3, pesticides, toxicology

 Lecture video part1 




Lecture video part2




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MCQ 

Mechanism of action of OPS is:

a-# release of Ach

b-# synthesis of Ach

c-# Ach esterase action

d-# Ach re-uptake

2-The most specific investigation for OPS :

CBC
Muscle tone
Cholinesterase level
Urine analysis
3-Cause of death in OPS tx:

Heart failure  
b-respiratory arrest

Shock
d-renal failure

4-which of the following considered mechanism of action pyrethroids:

a- prolonged depolarization  

b-block nerve conduction

c-block Cl-

channels

d- All of the above


5-“Cytochrome C oxidase inhibition” is a mechanism of action of:

a-chloride

b- OPS

c-warfarin

d-zinc phosphide


6-Aging means : OP-AchE bond become permanent after 12H :

a- True

b- False


Answers


1-c

2-c

3-b

4-d

5-d

6-b 
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