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L7, Gas poisoning ( carbon monoxide), Toxicology

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MCQ


1-Clinical manifestation of CO poisoning is dependent on :

a)Blood level of CO-Hb
b)Age of patient
c)Preexisting cardiac or lung disease
d)All of above

2-Lowest risk of CO poisoning :

a)Person with chronic bronchitis
b)Person with congestive heart failure
c)Person with hypertension
d)Person who smoke 

3-Treatment indicated in CO poisoning :

a)Sodium nitrate
b)Breathing room air
c)Hyperbaric oxygen 
d)ipratropium

4-Kunkel test is bed side test of :

a)CO
b)CN
c)H2s
d)All of above

5-about hyperbaric oxygen is false :

a)Provide oxygen at 2 atmospheric pressure 
b)Improve tissue oxygenation
c)Increase cerebral edema
d)Accelerate co elimination

6- role of hyperbaric oxygen in co poisoning :

a)Improve tissue oxygenation
b)decrease cerebral edema
c)Accelerate co elimination
d)All of above

7-mechanism of action of co poisoning :

a)Direct brain toxicity
b)Acute lung injury
c)Acute hemolysis
d)Displacement of oxygen from heamoglobin

8- young male presente in novamber comblaining of headache and dizziness ? gas inhaled :

a)Nitrogen
b)oxygen
c)helium
d)CO

9- not seen in CO poisoning :

a)Coma 
b)Metabolic alkalosis
c)Confusion 
d)Nausea 


10- Compared to oxygen , CO affinity to heamoglobin :

a)120 times greater
b)220 times greater
c)320 times greater
d)420 times greater

11- organ most sensitive to CO poisoning

a)Brain
b)Lung
c)Heart
d)muscle   

Answers 

1/d
2/c
3/c
4/a
5/c
6/d
7/d
8/d
9/b
10/b
11/a
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