Published
for the Fort Bliss/El Paso, Texas Community
April
28, 2005
Summer
heat in El Paso can dehydrate, kill quickly
SGT. JERRY ANGUIANO
Environmental Health, Department of Preventive Medicine
Summer is just around the corner and you can rest assured that it probably
will be a scorcher.
With temperatures reaching 110 degrees, heat is always a threat to our
Soldiers and family members engaged in activities. Studies have shown
that the number of heat injuries has seen a general decline since 1987.
The “high risk” units are the training schools. This is
because of the transitional status from the comfort of civilian life
to initial entry training in the military. The pattern for the time
of the day with the highest incidence of heat injuries is one with peaks
at 8 to 10 a.m. and 4 to 6 p.m. This coincides with the physical training
schedule on most military installations. Other people at risk are newly
assigned Soldiers to units coming from a lower temperate climate.
So what do we need to know to keep ourselves from becoming a dreaded
heat casualty? There are a few basic precautions Soldiers and family
members can do to reduce the potential for heat injury. Here are a few
things to keep in mind this summer:
You must consume enough water to maintain your body’s cooling
mechanism. Proper guidance in water consumption is shown here. This
is a change from the guidance provided in Field Manual 21-10. Heat injuries
are your body’s reaction to excessive loss of fluids. Drink water
the evening before major events involving strenuous exercises. Drink
water throughout the day following guidance discussed previously.
Avoid diuretics such as alcohol and caffeine. Supplements containing
creatine may also increase the risk of heat injury. Although no official
information on these supplements has been put out; care should also
be taken with any Ephedra-containing products.
Know the symptoms associated with heat injuries. Many of these symptoms
overlap among different injuries, and it is very easy to go from one
injury to another if no precautions are implemented. Sunburns are a
reddening of the skin with pain on movement or touch. In some cases
blister may appear. Sunburns typically prevent the body’s cooling
mechanism from working properly due to the damaged skin.
Heat cramps are muscle cramps in the extremities and abdomen, accompanied
by excessive sweating, and thirst.
Heat exhaustion’s usual symptoms are excessive sweating, cool,
clammy skin, headache, dizziness, weakness and loss of appetite. However,
some experience heat cramps, nausea, the urge to defecate, chills, rapid
breathing, tingling in the hands and feet or confusion.
A heat stroke is a medical emergency. The symptoms are hot and dry skin,
weakness, dizziness, confusion, headaches, seizures, nausea, breathing
problems and loss of consciousness.
You should know what to do if you find someone with any of these symptoms.
Sunburns can be treated by covering the body part, and applying cold
compresses or lotions
When heat cramps occur move the casualty to the shade, loosen clothing,
provide at least one quart of cool water. Keep an eye on the casualty,
and provide more water if they will drink it.
Seek medical aid if symptoms continue. Heat exhaustion is the same as
above, except you may want to pour water over the casualty and fan to
cool, elevate the casualty’s legs and monitor until the symptoms
go away or medical help arrives.
Monitor the Wet Bulb Globe Temperature heat index and use work rest
cycles. The WBGT heat index can be obtained here by calling 569-4328.
Remember that body armor or Mission Oriented Protective Posture gear
adds 10 degrees to the WBGT heat index. Recommend that Soldiers drink
sufficient water in accordance with heat category. Do not force someone
to drink water, especially if they are vomiting. Drinking water must
be monitored closely with the guidance given below. Soldiers have died
due to over consumption of water, causing an imbalance in electrolytes
in the body.
Acclimatization is the ability of the body to undergo physiological
adaptations so that the Soldier is able to cope better with the environmental
and physiological heat stress. Newly enlisted Soldiers are generally
not acclimatized adequately to heat. Social habits and norms such as
the extensive availability of air-conditioning contribute to this observation.
Therefore, Soldiers in their first six months of training are at higher
risk of heat injuries. Heat acclimatization increases sweating by 50
to100 percent, and this enhances the evaporative cooling capacity of
the body. Increased sweating, however, can lead to dehydration. Soldiers
can adapt to heat but not to dehydration. Physically fit Soldiers acclimatize
more rapidly than those less fit.
Heat is a dangerous but manageable adversary. Leaders and supervisors
at all levels must use available resources to manage heat stress in
the unit or workplace. Strong leader support is the key to prevention
of heat related casualties.
For more information regarding the WBGT readings or recommended protective
measures, contact Pfc. Ryan C. Van Norman at 569-3619 or Pfc. Lillian
A. Bell at 569-3619.