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Accident Investigation > IH HEAT STRESS > Flashcards

IH HEAT STRESS Flashcards

1
Q

Heat STroke SIGNS

A
  • EUPHORIA
  • RED FACE
  • DISORIENTATION
  • HOT, DRY SKIN (USUALLY, BUT NOT ALWASY)
  • ERRATIC BEHAVIOR
  • COLLAPSE
  • SHIVERING
  • UNCONSCIOUSNESS
  • CONVULSIONS
  • BODY TEMPERATURE GREATER THAN 104 DEGREES
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2
Q

HEAT STROKE CAUSE

A

Excessive exposure

  • Subnormal tolerance (geneti or acquired)
  • Drug/alcohol abuse
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3
Q

Heat Stroke First Aid

A
  • Immediate, aggressive, effective cooling
  • Transport to hospital
  • Take body temperature
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4
Q

Heat Strok Prevention

A

Self-determination of heat stress exposure

  • Maintain a healthy lifestyle
  • Acclimation
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5
Q

Heat Exhaustion Symptoms

A
  • Fatigue
  • Weakness
  • Blurred vision
  • Dizziness, headache
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6
Q

Heat exhaustion Signs

A
  • High pulse rate
  • Profuse sweating
  • Low blood pressure
  • Insecure gait
  • Pale face
  • Collapse
  • Body temperature: Normal to slightly increased
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7
Q

Heat exhaustion Cause

A
  • Dehydration (caused by sewating, diarrhea, vomiting)
  • Distribution of blood to the periphery
  • Low level of acclimation
  • Low level of fitness
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8
Q

Heat exhaustion First Aid

A
  • Lie down flat on back in cool environment
  • Drink water
  • Loosen clothing
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9
Q

Heat Exhaustion Prevention

A
  • Drink water or other fluids frequently
  • Add salt to food
  • Acclimation
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10
Q

Dehydration Symptoms

A

No early symptoms

  • Fatigue/weakness
  • Dry Mouth
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11
Q

Dehydration Signs

A
  • Loss of work capacity

* Increased response time

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12
Q

Dehydration Cause

A

*Excessive fluid loss caused by sweating (vomiting or diarrhea), alcohol consumption

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13
Q

Dehydration First Aid

A

*Fluid and salt replacement

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14
Q

Dehydration Prevention

A
  • Drink water or other fluids frequently

* Add salt to food

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15
Q

Heat Syncope Symptoms

A
  • Blurred vision (gray-out
  • Fainting (brief black-out)
  • Normal Temperature
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16
Q

Heat Syncope Signs

A

*Brief fainting or near-fainting behavior

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17
Q

Heat syncope Cause

A

*Pooling of blood in the legs and skin from prolonged static posture and heat exposure

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18
Q

Heat Syncope First Aid

A
  • Lie on back in cool environment

* Drink water

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19
Q

Heat syncope Prevention

A
  • Flex leg muscles several times before moving

* Stand or sit up slowly

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20
Q

Heat cramps Symptoms

A

*Painful muscle cramps, especially in abdominal or fatigued muscles

21
Q

Heat cramps Signs

A

*Incapacitating pain in muscles

22
Q

Heat cramps Cause

A

*Electrolyte imbalance caused by prolonged sweating without adequate fluid and salt intake

23
Q

Heat cramps First Aid

A
  • Rest in cool environment
  • Drink salted water (0.5% salt solution)
  • Massage muscles
24
Q

Heat Cramps Prevention

A

*If hard physical work is part of the job, workers should add extra salt to their food

25
Q

Heat rash (prickly heat Symptoms

A
  • Itching skin

* Reduced seating

26
Q

Heat rash (Prickly heat) Signs

A

*Skin eruptions

27
Q

Heat rash (prickly heat) Cause

A
  • Prolonged, uninterrupted sweating

* Inadequate hygiene practices

28
Q

Heat rash (prickly heat) First Aid

A
  • Keep skin clean and dry

* Reduce heat exposure

29
Q

Heat Rash (prickly heat) Prevention

A

*Keep skin clean and periodically allow the skin to dry

30
Q

What are the three factors that influence Thermal Stress

A
  • Climatic conditions
  • Work demands
  • clothing
31
Q

What is metabolic RAte

A

rate of internal heat generation, which must be dissipated from the body to maintain THERMAL EQUILIBRIUM

32
Q

WBGT MEASURES WHAT 3 THINGS

A

RADIANT HEAT
AIR TEMP
EVAPORATIVE COOLING

33
Q

TRUE/FALSE

Telling employees to take a break whenever they need one is an effective control

A

FALSE

34
Q

What % of people are heat intolerant

A

3%

35
Q

The heat index on the news measures what two things?

A

Relative humidity

dry bulb temperation

36
Q

Why is Heat Index more valuable to the general population than WBGT?

A

Because everyone understands it

37
Q

Since going by heat index chart will cause you to send people home 1/2 the year in Corpus Christi, what should you do?

A

Use control mechanisms

38
Q

What does heat Index chart compare? Measure?

A

Compares relative temperature to environmental temperature to get “apparent temperature”. Color indicate Heat Stress Risk with Physical Activity and/or prolonged exposure

39
Q

The Heat Index Chart - gives you information about?

A

Heat Stress Risk with Physical Activity and/or prolonged Exposure

40
Q

If apparent temperature is 90-105 F - and is the blue part of the chart what is possible?

A

Heat cramps or heat exhaustion possible

41
Q

If Heat Index Chart is yellow - 105 - 130 F what is likely and what is possible

A

Heat cramps or heat exhaustion likely. Heat stroke possible

42
Q

If heat index chart is in the red zone - 103 F and up what is highly likely?

A

Heatstroke is highly likely.

43
Q

What assumptions are made of WBGT and NIOSH ACGIH TLV

A

Loose cotton clothing
take breaks in same thermal environment you work in
No PPE

44
Q

True/False

Long term exposure to heat can cause liver, kidney failure

A

True

45
Q

True/False

Short term overexposure to heat can cause irritability

A

True

46
Q

How long can it take to become acclimatized to heat?

A

Two weeks

47
Q

What is the biggest contributor to heat gain by a worker

A

The metabolic cost of doing work

48
Q

heat stroke symptoms

A
  • Chills
  • Restlessness
  • Irritability

Accident Investigation (2 decks)

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