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L17,18 Gas poisoning, Toxicology

 Lecture Video 




Questions

1-A patient presents with acute CN  poisoning .what is the best treatment


A)Pralidoxime

B-N acetyl cysteine

C-Ammonium chloride

D-Hydroxocoblamin

2-Which is true for the use hydroxocoblamin in the treatment of CN TOXICITY


A-Cannot be used by paramiducs in field

B-Take up CN and converts to a form of VITAMIN B12

C-side effect makes it dangerous than traditional cyanide  anti dote kit

D-severe hypotention. And methhemoglobin  discourage its use


3-Symptoms of acute  CN  poisoning include all of  The following except?


A-convulsions

B-paralysis

C-cyanosis

D-anxiety


4-The odor of CN IS



A-acetone odor

B-bitter almond

C-rotten egg odor

D-odourless




5-The best CN antidote kit detoxifing  neural manifestation of CN poisoning



A-lilly kit

B-kelocyanor  kit

C-4DMAP

D-Hydroxycoblamine


6- The standard  CN anitdotal kit in united Kingdom



A-lilly kit

B-4DMAP

C-K elocyanor  ( dicobalt edetate )

D-pasadena



7-The odor of sewer  gas is



A-odorless

B-strewberry

C-sweet almond

D-rotten egg


8- All of the following gases are chemical toxins except



A-CO

B-CO2

C-hydrogen cyanide

D-hydrogen sulphide


9-Crimson red color in CN IS DUE TO .... WHILE CHERY RED color in CO is due to



A-met hemoglobin , oxy hemoglobin

B-deoxy hemobglbin , sulphamethemoglobin

C-oxyhemoglobin , carboxy hemoglobin

D-cyanomethemoglobin ,oxy hemoglobin


10-Cerebral odema after  Co. Exposure. Reprents... In body respones to hypoxia



A-stage of failure

B-stage of recovery

C-stage of compensation , sympathetic activity

D-stage of compensation , vasodilation


11-Which monitoring devicr is the most  suitable for the monitoring  of patient  with CO toxicty



A-co-oximeter

B-pulse oximeter

C-ABG

D-CAPNOGRAPH


12-When compared to oxygen , what is CO affinity for  hemoglobin



A-100times

B-250times

C-600times

D-800times



13-What treatment is indicated for significant  poisoning with CO



A-Bronchodilators

B-100%oxygen

C-corticosteroids

D-mechanical ventilation



14-What are the mechanism of  co2toxicity and CO TOXICTY



A-displace o xygen from inspired air

B-displace oxygen  from hemoglobin

C-A then B

D-B then A




15-Which of the following statement is false according to  hyper baric oxygen



A-it provides oxygen at 2atmospheric pressure

B-it improve  tissue oxygenation

C-it decrease s half life of carboxy hemoglobin to 1.5hours

D-it decrease the half life of carboxy hemoglobin to 20 -or 30minutes






Answers 


1.D

2.B

3.C

4.B

5.D

6.C

7.D

8.B

9.C

10.D.   

11- A

12-B

13-B

14-C

15-C          




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