Recovered Terran Chemedic Operations Manual: Excerpt pg.29
...and will find themselves confronted with the effects of chemical agents on fellow soldiers in the battlefield. Remember the Chemedic motto, "Save, Spray, and Secure."
SAVE any weapons, perishables, and/or items of interest carried by field personnel.
SPRAY the high velocity chemical wash on any personnel exhibiting symptoms of chemical exposure . You may notice some sloughing of the skin and/or tissue deterioration as the spray takes effect. This is perfectly normal. If an individual reacts violently to the chemical wash, continue to SPRAY at an increased velocity until cleansed. (please note: If a subject does not appear to have been affected by the chemical agents, skip to Secure)
SECURE anyone still living that DOES NOT exhibit symptoms of being affected by chemical agents. You will find...