A patient has an injury to his arm caused by an unknown vesicant. After assessing the airway, breathing, and circulation, you should:

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If a patient has an injury caused by an unknown vesicant, the first step is to flush the affected area with water to remove any remaining agent and prevent further damage. This should be done for at least 20 minutes, or until medical help arrives. Applying a wet sterile dressing and transporting the patient to the hospital are also important steps, but the initial priority is to remove the agent from the skin. Brushing the powder from the skin should not be done, as this can spread the agent and cause further injury.

A Patient Has an Injury to His Arm Caused by an Unknown