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Chemical Agents of Opportunity for Terrorism: TICs & TIMs

Chemical Agents of Opportunity for Terrorism: TICs & TIMs

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<strong>Chemical</strong> <strong>Agents</strong> <strong>of</strong> <strong>Opportunity</strong> <strong>for</strong> <strong>Terrorism</strong><br />

Training Support Package<br />

Participant Guide<br />

Slide 22<br />

<strong>Chemical</strong> <strong>Agents</strong> <strong>of</strong> <strong>Opportunity</strong> <strong>for</strong> <strong>Terrorism</strong>:<br />

<strong>TICs</strong> & <strong>TIMs</strong><br />

Methylmercury Poisoning<br />

Clinical Findings in Adults<br />

• Numbness around the mouth and in a stocking -glove<br />

distribution<br />

• Classic Triad<br />

– Ataxia - slight unsteadiness to inability to walk<br />

– Visual changes ranging from blurred or decreased vision to blind ness<br />

– Dysarthria - Slurring <strong>of</strong> speech<br />

• Mental deterioration<br />

• Severity <strong>of</strong> signs and symptoms are dose -dependent<br />

– Mild/moderate symptoms: 2.4 mg/kg<br />

– Severe symptoms: 3.6 mg/kg<br />

Module One - <strong>Terrorism</strong> by Fear and Uncertainty: Delayed Toxic Syndromes<br />

22<br />

The symptoms developed by Iraqi adults follow the typical progression <strong>for</strong> organic<br />

mercury poisoning.<br />

Initial numbness (paresthesias) around the mouth and distal extremities was followed by<br />

the triad <strong>of</strong> gait abnormalities, visual, and speech changes.<br />

Most toxins exhibit a dose-response relationship. Comparing clinical effects with<br />

estimates <strong>of</strong> methylmercury consumption from contaminated grain were consistent with<br />

a dose-response relationship.<br />

December 2008 Version 2.0 Page 330

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