Algorithm for the clinical diagnosis of a chemical weapons exposure

* Signs of upper airway (central compartment) irritation consistent with type I (eg, hydrogen chloride or hydrogen fluoride) or combination (eg, chlorine) pulmonary agent exposure.
¶ Signs of pulmonary edema (peripheral compartment) suggesting type II pulmonary agent exposure (eg, phosgene).
Δ For example, miosis, nausea, vomiting, diarrhea, bronchorrhea, sweating, twitching, fasciculations, weakness, and paralysis.
◊ For example, dilated pupils, dry mouth, flushing, dry skin, tachycardia, delirium, hallucinations.
§ May also have flushed skin and normal or dilated pupils.