#7. Environmental Considerations & Common Medical Conditions Flashcards
(41 cards)
“heat loss from a warmer object to a cooler object - indirectly”
manners of heat dissipation: radiation
“warmer body gives off heat to cooler objects - directly”
manners of heat dissipation: conduction
“cooler air blowing over body will cool off the body”
manners of heat dissipation: convection
“perspiration form on surface of skin and evaporates, carrying the heat with it”
manners of heat dissipation: evaporation
for temperatures that are less then 20 degrees Celsius, what are the primary ways to dissipate heat?
conduction and evaporation
for temperatures that are greater then 20 degrees Celsius, what is the primary way to dissipate heat?
evaporation
Etiology: when an individual abruptly stops exercising and blood pools therefore not being returned to the brain or heart.
S&S: lightheadedness or fainting
What is it?
Heat Syncope
“temporary loss of consciousness caused by a fall in blood pressure”
syncope
Management for heat syncope?
elevate legs, cool down with towels, re-hydrate, and remove from heat
S&S: extreme weakness, profuse sweating, light headedness, impaired ability, headaches, tachycardia, cramping, vomiting or diarrhea, and core temp greater then 39.5 degrees. What is it?
Heat Exhaustion
When someone has heat stroke, why do you not want submerge them in water?
A) because they can pass out and drown
B) because if their extremities get to cold to fast then it sends a rush of cold blood to the heart which is a big no no
Etiology: body is unable to dissipate heat and results in a core temp that is greater then 40 degrees
S&S: sudden collapse, LOC, flushed, hot skin, shallow breathing and rapid pulse
What is this?
Heat Stroke
Which do you call 911 for, heat exhaustion or heat stroke?
heat stroke
Which causes skin to feel cold, clammy and look pale, heat exhaustion or stroke?
exhaustion
Rapid weak pulse is heat ____ while rapid strong pulse is heat _____.
exhaustion; stroke
Do you sweat if you have heat stroke?
nope
“preventable disorder involving fluid-electrolyte balance; results in abnormally low plasma sodium concentration, and the low levels disrupt the osmotic balance across the BBB which results in a rapid influx of water into the brain causing swelling and unusual neurological responses”
exertional hyponatremia
S&S: confusion, seizure, coma - can lead to death because brain-stem ruptures
exertional hyponatremia
Hypothermia - problems arise when heat loss exceeds heat production - this results in impairment of ______ function
neuromuscular
Etiology: body’s ability to produce heat is impaired and core temp falls to less then 35 degrees
S&S: shivering, numbness, lack of coordination, confused or unusual behavior, slurred speach
What is it?
hypothermia
If someone has hypothermia and starts to complain about being to hot and they start to remove clothes, what does this mean?
they are getting close to death
Hypothermia
- shivering occurs @ ____
- shivering stops @ ___-___ degrees
- death is imminent @ ___-___degrees
small drops in body temp
29.4-32.2
25-29
Why is it important not to rub skin that has frost bite?
Because fluid between the cells has crystallized and has ice crystals so if you rub it then ice shards will damage tissue and vessels
At risk temperatures: Red Flag @ \_\_-\_\_ Amber Flag @ \_\_-\_\_ Green Flag @ \_\_-\_\_ White Flag @ less than \_\_
23-28
18-23
10-18
less than 10