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K 231 > Environmental Conditions Heat > Flashcards

Environmental Conditions Heat Flashcards

1
Q

What is the most important thing when providing care

A

The proper treatment

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2
Q

What do previous heat strokes result in?

A

Permant brain damage and the thermoregulatory system ( hypothalamus)

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3
Q

What is thermoregulation

A

The ability for the body to maintain a fairly steady core body temp under a variety of condition

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4
Q

What is the thermoregulation controlled by

A

Hypothalamus

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5
Q

Where does blood flow increase to

A

He skin and extremities

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6
Q

What temp is the body constantly trying to maintain

A

98.6 degrees

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7
Q

What are the two forces that act on the body to increase heat

A

External forces and internal forces

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8
Q

What is the external force

A

Environmental conditions, exercise intensity, clothing, equipment

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9
Q

What is the internal force

A

Metabolic heat production, individual factors

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10
Q

What happens as body heat increase

A

Core body temp increase

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11
Q

What are the four heat loss mechanism

A

Radiation
Conduction
Convection
Evaporation

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12
Q

What is radiation

A

During exercise the body attempts to dissipate heat by dilating superficial arterial and venous vessels

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13
Q

What is conduction

A

Transfer of heat by direct contact of a warm object with a cool object

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14
Q

What is convection

A

Body transfers heat to surrounding area example cool breeze

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15
Q

What is evaporation

A

Molecus in water absorb heat from environment and escape as gas

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16
Q

What does evaporation of sweat cause

A

Heat loss

17
Q

What is the total amount of sweat vaporized dependent on

A

Surface of skin exposed to environment

Temp and humidity of ambient air
Air currents around the body

18
Q

What is the most effective mode of cooling

A

Evaporation

19
Q

Increases core body temp riggers what?

A

Sweating mechanism

20
Q

What are the ways to measure core body temp

A 
Rectal
Ingestible thermistor
Oral
Aural
Axial part
Skin strip
21
Q

Which four way to measue core body temp where invalid

A

Oral
Aural
Ancillary
Skin strip

22
Q

What are the types of heat illnesses

A 
Heat rash
Heat syncope
Heat cramps
Heat exhaustion/ dehydration
Heat stroke
23
Q

What is heat rash also called

A

Prickly heat

24
Q

What the MOI for heat rash

A

Wet skin from sweat or wet clothing running on skin

25
Q

What the S/S and immediate care for a heat rash

A

Local red/raised rash, sensation, of prickling/tingling

Use a lube/powder, and select appropriate clothing material

26
Q

What the MOI for heat syncope

A

Peripheral vasodilation and pooling of blood in the extremities

27
Q

What does a shift in blood flow cause

A

A decrease of blood and oxygen to the brain

28
Q

What’s the S/S and immediate care for heat syncope

A

LOC, dizzy, nausea, faiting

Elevate exterminites, hydrate, cool/ fan body

29
Q

what the MOI for heat cramps

A

Loss of electrolytes due to sweating

30
Q

What do heat cramps do

A

Throws off the soduim potassium pump in muscles

31
Q

What’s the s/s of heat cramps

A

Painful spasms and cramps in skeletal muscle

32
Q

What the care needed for heat cramps

A

Replace fluid/ electrolytes via oral or IV method and stretch, massage, ice cups

33
Q

What’s depletion of water/electrolytes called

A

dehydration

34
Q

What’s the S/S of heat exhaustion/dehydration

A

Profuse sweating, headache, dizziness,confusion, fatigue, nausea rapid/weak pulse, decreases BP

35
Q

What’s the care needed for heat exhaustion and dehydration

A

Replace fluid and electrolytes via oral or IV method, get out of heat and refer to a physican

36
Q

How can extertional heat illnesses preventable

A

If identified quickly and managed properly

K 231 (18 decks)

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