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20 Cards in this Set
- Front
- Back
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is arsenic is a poison? |
Mettalic arsenic is not poisionous bt when arsenic binds with oxygen and forms poisionous vapor |
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poisionous compound of arsenic |
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source |
Natural: 1.ground water 2.soil |
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Mechanism of action of arsenic |
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acute arsenic poisoning |
1)the fulminant type 2)gastro enteric type 3)narcotic type 4Areseniuretted hydrogen |
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Fatal dose and route of absorbtion(most important) |
*100-200mg (0.1-0.2)gm fatal period: 1to 2 days route of poisioning 1.ingestion 2.inhalation 3.dermal absorption |
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the fulminant type_ |
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the gastroenteric type |
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difgerence between arsenic poisoning and cholera |
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treatment of acute arsenic poisioning |
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Narcotic form |
Toxic encephalopathy |
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post mortem fimdings of arsenic poisoning |
* the leisons are mainly found in the stomachs and mucosa is swollen, odematous red either generally or in patches. especially in pyloric region * stomach mucosa resembles red valvet. *small acute ulcerations or large erosions may b found especially at pyloric end *inflammation :marked in greater curvature and posterior part of cardiac end. *sometimes arsenic penetrates through the walls of stomach and appears in liver, omentum and endocardium. * if putrification has taken place,yellow streak will be found in the suboeritoneal of the stomach |
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chronic Arsenic poisioning |
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Post mortem appearence of chronic arsenic poisoning |
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Absorption |
daily human intake :half to one mg absorbed orally pentavalent (arsenic) demally (arsenite) by inhalation (arsine) |
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distribution |
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elimination |
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medicolegal importance |
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post mortem imbibition |
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test for detecting arsenic |
1.marsh’s test 2.reinsch's test 3. spectroscopy (modern) |
