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Toxicology_L24,25, Part1, Ethanol

L24,25, Part1, Ethanoly



MCQ

1-McEwen sign is present in massive intake of: 
a-Barbiturate 
b-Ethanol 
c-Atropine 
d-Imipramine 

2-Slurred speech is present in acute poisoning of: 
a-Atropine
b-Ethanol 
c-Cannabis 
d-Imipramine 

3-In ethanol withdrawal, the following are present except: 
a-Auditory hallucination 
b-Tachycardia 
c-Constricted pupil 
d-Fever and sweating 

4-Antidote for methyl alcohol is: 
a-DMSA 
b-BAL 
c-EDTA 
d-Ethyl alcohol 

5-Green tongue syndrome occurs with: 
a-Ethanol 
b-Methanol 
c-Ethylene glycol 
d-All of the above 

6-The target organ of methanol is: 
a-Kidney 
b-Liver 
c-Optic nerve
d-Heart

7-Which one of the following has toxicity of optic nerve? 
a-Ethanol 
b-Methanol 
c-Ethylene glycol 
d-Isopropyl 
Propylene glycol 

8-Which one of the following is a toxic metabolite for methanol? 
a-Acetic acid 
b-Formic acid 
c-Folic acid 
d-NAPQI 
e-Acetaldehyde 

9-Which one of the following is used as antidote for methanol toxicity? 
a-Flumazenil 
b-Fomepizole 
c-Antabuse 
d-NAC 
e-Atropine

10-Hemodialysis is indicated in methanol toxicity in case of: 
a-Methanol level is less than 5 mg/l00ml 
Format is less than 5mg/100mI 
b-Acidosis responsive to bicarbonate 
Visual impairment 
c-Severe nausea, vomiting and abdominal pain

11-As regard methanol toxicity, which of the following statement is wrong: 
a-Illicit alcohol production remains a global source of methanol poisoning. 
b-The accumulation of formic acid is associated with the onset of clinical symptoms 
c-Crystalluria is one of toxic features of poisoning. 
d-Abnor87mal fundus examination present. 

12-With regard to the alcohols which is false? 
a-Methanol causes snow storm vision in severe intoxication 
b-Ingestion of both methanol and ethylene glycol causes a metabolic acidosis with an increased anion gap. 
c-Neither methanol Nor ethylene glycol are absorbed through the skin, 
d-You might expect to find oxalate crystals in the urine of a patient who had an ethylene glycol overdose. 

13-One of the following statements is false about blindness due to methanol poisoning: 
a-Due to direct effect of formic acid. 
b-Fomipezole, a specific alcohol dehydrogenase inhibitor is helpful. 
c-Ethanol is helpful to prevent blindness. 
d-Gastric lavage is not helpful. 

14-Visual disturbance due to methanol toxicity include the following signs except:
a-Diplopia and photophobia 
b-Nystagmus and hyperemia of optic disc 
c-Retinal edema and optic atrophy 
d-Blurred vision and reactive dilated pupils 

15-In methyl alcohol poisoning optic papillitis and retinal edema are occurred due to: 
a-Formic acid production in the retina 
b-Formaldehyde production in the retina 
c-Acetaldehyde production in the retina 
d-Acetic acid production in the retina 

16-Ingestion of ethylene glycol induces nephrotoxicity within 
a-12-24 hours 
b-24-72 hours 
c-3-6 days 
d-6- 12 days

17-Which of the following does not represent a manifestation of ethylene glycol poisoning? 
a-Nystagmus 
b-abnormal optic fundus 
c-Tachycardia and tachypnea 
d-Sever hypotension
 
18-In diagnosis of ethylene glycol toxicity, the laboratory results include all the following except: 
a-Leukocytosis 
b-Hypocalcemia 
c-Hypercalcemia 
d-Serum ethylene glycol greater than 20mg/dL

Answers

1- b
2- b
3- c
4- d
5- b
6- c
7- b
8- b
9- b
10- d
11- c
12- c
13- a
14- d
15- b
16- b
17- b
18- c




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