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Flashcards in Environmental Emergencies Deck (71)
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1

Body Temp

Tries to maintain at 98.6F

2

CBT core body temperature

Temperature in body consisting of heart, lungs, brain and abdominal viscera

3

Hypothermia starting

95F
Heat Stroke 104F

4

Hypothalmus

Master thermostat in the brain

5

Thermoregulation

Controlled by hypothalmus

6

BMR

Basal Metabolic Rate
Energy produced at rest from normal body metabolic reactions
-Normal is 70Kilocalories per hour

7

Evaporation

Sweat from skin

8

Convection

Air or liquids
-wind chill

9

Conduction

Direct physical contact
-falls into cold lake

10

Radiation

By radiating heat to cold environement via body or ex of ac / heater
-lots lost from the head

11

Thermolysis

Release of stored heat from the body. 4 types

12

Thermogenesis

Production of heat and energy from the body is main method of dealing with cold stressors

13

Heat Illness

Increase in CBT due to inadequate thermolysis

14

Risk Factors from Medications

Diuretics cause dehydration
Beta blockers limits ability to compensate with heart rate for compensation

15

Heat Cramps

Acute involuntary muscle spasms
-occur from profuse wearing and sodium loss
-affect those in good physical condition
-increases serum level of potassium with loss of sodium and develops muscle irritabiliy

16

Heat Cramp Assessment

Hypotension
Nausea
Rapid pulse
Pale and moist skin
Normal temperature normally

17

Management

Move to cool environement
Fluid replenishment
1oz Gateroade to 4oz of water 1:4 ratio

18

Heat Syncope

Orthostatic syncopal episode from prolonged standing or sitting and suddenly standing and cannot compensate with a sudden sympathetic response

19

Heat Exhaustion

Mild form of heat illness of volume depletion and heat stress
Two types: water depleted and salt depleted

20

Exercise associated hyponatremia

Prolonged exertion with excessive fluid intake
Too much water in body in relation to sodium

21

Assessment

Headache
Dizziness
Weakness
Nausea
Vomiting
Cramping

22

Management

Passive Cooling
Fluids
Supine with legs elevated
Oral hydration

23

Heat Stroke

CBT>104F and AMS
PROTEIN CELLS IN BRAIN start tow twist and break down too fast

24

Classic Heatstroke

Very old and young people and come in waves of heat
-Dry red hot skin, no longer sweating, vasodialated

25

Exertion also Heat stroke

Exercising in hot climates
If humidity rises above 75% evaporative cooling is ineffective
-Pale and sweating

26

Cold Wet Packs

Shunts vasculature and brings chemicals to the core causing dysrhythmia and seizures

27

Cold Injury

Localized to injuries

28

Frost Bite

Ischemic injury as superficial or deep depending

29

Frostnip

Mild form of frost bite, feels like a burn, numbness

30

Superficial Frostbite

Altered sensation, numbness, tingling, or burning
-white, waxy and swollen