The first thing to do for heat exhaustion is get the person out of the heat and into a cooler, shaded area. Moving to shade lowers the radiant heat they’re absorbing and helps the body start cooling, reducing core temperature. Once in shade, loosen tight clothing, have them rest, and rehydrate if they can drink (water or an electrolyte solution). You can also use cool cloths or fans to aid cooling. Medications aren’t indicated at this stage, and staying in the sun only keeps the heat load high. Providing only cold water is not enough by itself—the immediate priority is reducing exposure to heat while beginning rehydration and cooling. If symptoms worsen or heat stroke is suspected (confusion, seizures, very high temperature, or unconsciousness), seek urgent medical help.

Providing preventive medicine briefs on expected health risks in the area of operation is a pre-deployment PMT responsibility because the preventive medicine team prepares the force by translating health risk data into actionable guidance. These briefs equip troops with information on vaccines, prophylaxis, disease threats, safe food and water practices, heat or cold injury prevention, and other environment- and disease-related precautions, so they can maintain readiness and reduce health risks abroad. The other tasks align more with general deployment logistics or administrative duties: creating deployment schedules is personnel and operations planning, coordinating host nation visas is diplomatic/administrative work, and managing medical supply inventory is a logistics function.

Medical threat in the field is multifactorial, including environmental conditions, zoonotic risks, and endemic diseases in the operating area. Environmental factors set the stage for health problems—extreme temperatures, poor air quality, contaminated water or food, and other hazards that can directly cause illness or weaken performance. Zoonotic risks from animals or bites bring infectious threats that can spread rapidly if not recognized and treated, such as diseases transmitted from wildlife or domestic animals. Diseases endemic to the area are those already circulating locally, meaning personnel may be regularly exposed unless preventive measures, vaccination, or prophylaxis are in place. Because each domain adds a distinct pathway to illness or impairment, considering all three provides a comprehensive view of the medical threat. That’s why the option encompassing environmental factors, zoonotic/animal-bite diseases, and endemic local diseases is the best answer.

In field sanitation, the goal is to limit exposure of waste to people, pests, and the environment. The best practice for a garbage pit is to close it and cover it daily, or as soon as the pit is within about a foot of the ground surface. Covering with soil prevents flies from breeding in the refuse, reduces odors, and deters animals, keeping the area cleaner and safer. Steel lining isn’t required for a basic garbage pit; many pits are simply dug and then backfilled or lined with inexpensive materials. Daily chemical cleaners aren’t part of standard operation and can be unnecessary or even harmful to the environment. And using a pit for more than a month typically increases odor, pest issues, and disease risk, so regular closing is important.