What signs differentiate heat illness from trauma in the field?

• A. Profuse sweating and normal mental status
• B. Hypothermia with pale skin
• C. Presence of external wounds and fractures
• D. Hyperthermia with CNS symptoms, history of exposure, dry hot skin

Answer: (D)

Focus on how heat illness presents in the field. Heat illness, especially heat stroke, shows an unusually high body temperature with central nervous system dysfunction (confusion, agitation, seizures) and a clear link to heat exposure or recent strenuous activity. The skin is hot and may be dry because sweating has ceased. This combination of hyperthermia, CNS symptoms, exposure history, and dry skin is characteristic of heat illness and helps distinguish it from injuries caused by trauma, which typically show external wounds or deformities rather than signs of overheating.

Other options don’t fit as well: profuse sweating with normal mental status could occur in milder heat illness but won’t reveal CNS impairment or a clear heat-exposure history; hypothermia with pale skin points to cold exposure, not heat illness; and external wounds or fractures indicate trauma, not overheating or heat-related CNS symptoms.