Environmental Considerations & Common Medical Conditions Flashcards
Individuals Susceptible to HEAT Illness
- age (very young or old)
- obese (produce 18% more heat)
- poor conditioning or acclimatization
- previous history of heat illness
- sleep deprived
- dehydration
- acute illness (fever or GI)
- chronic illness (alcoholic, cystic fibrosis, cardiac disease, skin problems, uncontrolled diabetes)
- wheelchair / SCI athletes
define metabolic heat production
production and radiation of heat via metabolic function
define radiation
heat gain or loss;
eg., heat gain from sunshine; loss as body tries to dissipate heat
define conduction
heat gain or loss via contact with other objects (ice vs turf)
define convection
heat gain or loss as air or water circulates over body
define evaporation
heat loss via perspiration and evaporation (sweat 2-4 lb per 2kg/hr)
How could you prevent heat injury?
- acclimatize (1-2 weeks)
- education
- unrestricted hydration
- identify people at risk
- appropriate uniforms
- weight records
- monitor heat index
- common sense
true or false; there is no such thing as overhydration
false; hyponatremia -> overhydration -> skews electrolyte balance
true or false; hyponatremia may cause brain swelling and unusual neurological responses
true
S&S hyponatremia
- bloating/nausea
- worsening headache
- vomiting
- swelling in extremities
- lethargy
- apathy / agitation
- wheezing
- mm weakness
- spasm & fatigue
- disorientation
- At extreme: confusion, brain damage, seizure or coma, DEATH
S&S Dehydration
- negative effect on performance
- thirsty
- dry mouth
- headache
- dizziness
- irritability
- lethargy
- excessive fatigue
- possible cramping
define heat syncope and what is it caused by
fainting d/t heat
- blood pooling after exercise
- d/t poor acclimatization
- d/t standing in heat for too long
S&S heat syncope
- light headedness
- dizziness
- nausea
- fainting
S&S mm cramp
- painful/violent mm cramp in calf or abdominal mm
- sweating/fatigue
S&S heat exhaustion
- profuse sweating
- weakness
- pallor
- weight loss
- low urine volume
- thirsty/dry mouth
- nausea
- headache
- increased core temperature
true or false; heat stroke is not a medical emergency
false; call 9-1-1
true or false; you can detect a heat stroke in a person when they are profusely sweating
false; no sweating in someone who has had a head stroke
Individuals Susceptible to COLD Illness
- age (very young or old)
- prolonged exposure
- malnutrition
- some medications
- previous history of cold illness
- chronic illness (alcoholism, skin problems/burns, diabetes, hypothyroidism, Parkinson’s)
- SCI athletes
S&S heat stroke
- sudden collapse
- LOC
- flushed skin
- hot skin
- shallow breathing and rapid pulse
- headache
- seizure
- change in behavior
- nausea / diarrhea
cold injury prevention
- hydration (body weight records)
- education
- identify people at risk
- appropriate apparel
- monitor weather
- warm downs
- common sense
In hypothermia, when does freezing stop?
29.4-32.3 degree celcius
in hypothermia, death is imminent between ____ and ____ degrees celcius
25 - 29