Types of Cold Stress Illnesses
Types of Heat Stress Illness
Prevention Protection
Understanding Cold Stress
Understanding Heat Stress
100

This is the freezing of skin and underlying tissue, most commonly affecting fingers, toes, ears, and the nose. Early warning signs include numbness, tingling, or pale, waxy skin. In severe cases, the tissue can become hard and blackened, sometimes requiring amputation. 

What is Frostbite

100

This condition occurs when heavy sweating causes the body to lose water and electrolytes, leading to thirst, fatigue, and dizziness.

What is dehydration?

100

It is important to keep clothes this because wet clothing increases heat loss dramatically. 

What is dry

100

This is a condition that occurs when the body loses heat faster than it can produce it, leading to health risks such as hypothermia, frostbite, or trench foot. 

What is Cold Stress

100

This occurs when the body gains more heat than it can release, causing internal temperature to rise during hot work conditions.

What is heat stress?

200

This develops from prolonged exposure to cold, wet conditions. The feet become numb, swollen, and discolored due to restricted circulation. If untreated, blisters, open sores, or tissue death can occur. Keeping feet dry and warm is key to prevention.

What is Trench Foot

200

This painful condition causes muscle cramps or spasms in the legs, arms, or abdomen after working hard in hot conditions.

What are heat cramps?

200

This prevention measure involves increasing calorie intake and drinking warm, non-caffeinated fluids to help the body generate heat in cold conditions.

What is proper nutrition and warm hydration? What are warm breaks

200

Makes the temperature feel colder and increasing heat loss, which speeds up the onset of cold stress.

What is wind chill

200

These two factors greatly increase the risk of heat stress by limiting the body’s ability to cool itself.  

What are high temperature and high humidity?

300

This Illness occurs when the body loses heat faster than it can produce it, causing the core temperature to drop below 95°F (35°C). Symptoms include shivering, confusion, slurred speech, loss of coordination, and fatigue. If untreated, it can lead to unconsciousness or death. 

What is Hypothermia

300

This illness develops when the body can’t keep up with heat stress, causing heavy sweating, weakness, nausea, headache, and possible fainting.

What is heat exhaustion?

300

Drink warm, non-caffeinated fluids and eat high-energy foods to help maintain this

What is Hydrated and Energetic

300

T / F - Cold stress can only occur in below-freezing temperatures. 

False

300

This personal factor can make a worker more susceptible to heat stress, especially during the first few days on a hot jobsite.

What is lack of heat acclimatization

400

This occurs when the body loses fluids through respiration and sweat without adequate replacement. Cold weather reduces thirst response, leading workers to drink less water. Symptoms include fatigue, dizziness, and confusion, all of which can worsen other cold-related conditions. 

What is Dehydration

400

This medical emergency happens when the body can no longer regulate its temperature, leading to confusion, loss of consciousness, and possible death.

What is heat stroke?

400

This protective measure includes providing shaded or cooled rest areas and scheduling regular breaks to reduce heat exposure.

What are rest breaks in shade or cool areas?

400

This is the degree of risk for construction workers because they often work outdoors for long periods, handle cold materials, and may not always have access to warm shelters or protective gear. 

What is High Risk

400

This type of clothing or equipment can increase heat stress by trapping heat and reducing sweat evaporation.

What is heavy or non-breathable PPE?

500

Inhaling cold air can cause airway constriction, leading to coughing, wheezing, and shortness of breath. Workers with asthma or respiratory conditions are particularly susceptible. Covering the mouth and nose with a breathable face covering helps warm the air and reduce symptoms.

What is Cold Stress Asthma

500

This condition shows up as clusters of red, itchy bumps caused by sweat trapped against the skin under clothing or PPE.

What is heat rash?

500

It is important to dress in this to stay warm, wearing lots of clothes will help maintain warmth.

What is Layers

500

Low temperatures, wind chill, wet conditions, and prolonged exposure are factors of this, which increase the risk oof cold stress

What are Environmental Factors

500

This index combines air temperature, humidity, radiant heat, and wind to estimate how hot it actually feels to the body.

What is the heat index

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