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Questions and Answers
What is a common symptom to look for in electrical burns?
What is a common symptom to look for in electrical burns?
What is the first step in treating a chemical burn after ensuring safety?
What is the first step in treating a chemical burn after ensuring safety?
How long should a chemical burn be flushed with cool running water?
How long should a chemical burn be flushed with cool running water?
What action should be taken if a chemical burn occurs in the eye?
What action should be taken if a chemical burn occurs in the eye?
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Which of the following actions should you avoid when addressing a chemical burn?
Which of the following actions should you avoid when addressing a chemical burn?
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What is the primary layer of skin that comprises closely packed epithelial cells?
What is the primary layer of skin that comprises closely packed epithelial cells?
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Which degree of burn affects only the top layer of the epidermis?
Which degree of burn affects only the top layer of the epidermis?
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What is one potential consequence of burns if not treated properly?
What is one potential consequence of burns if not treated properly?
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What defines the hypodermis of the skin?
What defines the hypodermis of the skin?
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Which of the following is NOT a method by which burns can occur?
Which of the following is NOT a method by which burns can occur?
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What is a key skill required for first aid providers when dealing with burn victims?
What is a key skill required for first aid providers when dealing with burn victims?
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What type of tissue is primarily found in the dermis layer of the skin?
What type of tissue is primarily found in the dermis layer of the skin?
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What is one of the professional skills emphasized in first aid training regarding burns?
What is one of the professional skills emphasized in first aid training regarding burns?
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What are the characteristics of a second-degree burn?
What are the characteristics of a second-degree burn?
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Which type of burn is characterized by numb skin and requires medical assistance for healing?
Which type of burn is characterized by numb skin and requires medical assistance for healing?
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What is the healing time for a first-degree burn?
What is the healing time for a first-degree burn?
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Which of the following is a determinant of burn severity?
Which of the following is a determinant of burn severity?
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What is indicated by the term 'Rule of Hand' in relation to burns?
What is indicated by the term 'Rule of Hand' in relation to burns?
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Which situation could potentially lead to a third-degree burn?
Which situation could potentially lead to a third-degree burn?
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What symptoms indicate a first-degree burn?
What symptoms indicate a first-degree burn?
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Which demographic is at a higher risk of complications from severe burns?
Which demographic is at a higher risk of complications from severe burns?
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What is the first step in treating a first-degree burn?
What is the first step in treating a first-degree burn?
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Which of the following indicates that medical care should be sought for a burn?
Which of the following indicates that medical care should be sought for a burn?
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For a small second-degree burn, what should be applied over the cooled area after treatment?
For a small second-degree burn, what should be applied over the cooled area after treatment?
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What should NOT be done to treat a first-degree burn?
What should NOT be done to treat a first-degree burn?
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If someone has a large second-degree burn, what is the first action to take?
If someone has a large second-degree burn, what is the first action to take?
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What is the primary concern when cooling a third-degree burn?
What is the primary concern when cooling a third-degree burn?
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Which of the following is a sign that a burn may require emergency care?
Which of the following is a sign that a burn may require emergency care?
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What should be done to clothing in the area of a burn?
What should be done to clothing in the area of a burn?
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What should be done first when someone has a thermal burn?
What should be done first when someone has a thermal burn?
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Which action is NOT recommended for a severe burn?
Which action is NOT recommended for a severe burn?
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What symptom might indicate an inhalation burn?
What symptom might indicate an inhalation burn?
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How should you react if a person is electrocuted?
How should you react if a person is electrocuted?
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Why is it dangerous to immerse large severe burns in cold water?
Why is it dangerous to immerse large severe burns in cold water?
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What should you do if someone has smoke inhalation symptoms?
What should you do if someone has smoke inhalation symptoms?
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What is a key danger associated with electrical burns?
What is a key danger associated with electrical burns?
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What should you do if you witness someone electrocuted by a power line?
What should you do if you witness someone electrocuted by a power line?
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Study Notes
First Aid Course PHMU 702 - Lecture 4: Burns
- Burns are a type of soft tissue injury
- Burns occur from direct or indirect contact with heat, electric current, radiation, or chemicals
- Burns can cause cell death, requiring hospitalization and potentially being fatal
Skin Anatomy
- The skin has two main layers:
- The epidermis: composed of closely packed epithelial cells
- The dermis: made of dense irregular connective tissue, containing blood vessels, hair follicles, sweat glands, and other structures
- The hypodermis (subcutaneous layer): lies beneath the dermis, composed of well-vascularized loose connective tissue and fatty tissue
- The hypodermis connects the skin to the underlying fascia of bones and muscles
Levels of Burns
-
First-degree burn: (Superficial)
- Damages only the top layer of the epidermis
- Symptoms: redness, mild swelling, tenderness, pain
- Usually heals within a week without permanent scarring
- Common causes: sun exposure, brief contact with hot objects/liquids
-
Second-degree burn: (Partial thickness)
- Damages the epidermis and dermis
- Symptoms: blisters, swelling, weeping of fluid, severe pain
- Usually heals in 3-4 weeks, may scar
- Common causes: severe sunburns, contact with hot objects/liquids
-
Third-degree burn: (Full thickness)
- Damages all layers of skin and underlying tissues
- Symptoms: dry, leathery, gray/blackened skin, potential numbness
- Requires medical assistance (e.g., skin grafting) and likely to scar
- Common causes: contact with fire, extreme heat, electricity
Severity of Burns
- Factors affecting severity:
- Size of the burn area: measured using the "Rule of Hand"
- Depth of the burn: superficial, partial, or full-thickness
- Location of the burn: face, hands, feet, and genitals are more critical
- Age of the patient: children and elderly are more vulnerable
Thermal Burns: Treatment and Actions
- First-degree burn: Immerse area in cool water or apply a cool compress for at least 10 minutes, if needed, take ibuprofen (or acetaminophen for children), keep burn area raised, apply aloe Vera gel or moisturizer, no need to cover
- Small second-degree burn (less than 20% BSA): Immerse area in cool water/cool compress, pain reliever if needed, apply thin layer of antibacterial ointment, cover with loose dressing
- Large second-degree burn (more than 20% BSA): Apply cold but monitor for symptoms, pain reliever if needed, keep burned arm/leg raised, call local emergency number
- Third-degree burn: Cover burn with sterile dressing, cool surrounding areas (not exceeding 20% of body), elevate affected area, call emergency
DO NOT DO FOR BURNS
- Apply ice or ice water
- Touch burn with anything other than clean dressing
- Remove clothing stuck to the burn
- Try to clean severe burn
- Break blisters
- Use ointment on severe burns
- Immerse large severe burns in cold water (hypothermia)
Inhalation Burns
- Risk of inhaling smoke/steam from fire that burns the airways
- Symptoms: ash/smoke around mouth/nose, charred lips, grey/black saliva, change in voice, trouble breathing/wheezing, chest pain, blurred vision, dizziness/confusion
- Actions: Call emergency, ensure safety, get the victim into fresh air, if conscious, sit/lay them down, if alert, check for pre-existing medical conditions, if not breathing, perform CPR, medical care is essential
Electrical Burns
- Inside body damage; outside burn might be small
- Actions: Turn off electricity, don't move victim unless danger, if near power lines, call for emergency services, do not touch or move power lines or person, keep people away from the area
- Look for: burn wound (small), entrance/exit wounds, multiple burns, tingling/fatigue, headache/muscle pain/spasms, and possible loss of consciousness, absent breathing/pulse.
- Actions: perform CPR if needed, call emergency services, check for broken bones/spinal injury, cover burns with sterile dressings
Chemical Burns
- Avoid chemical contact (gloves/goggles), if at workplace, check safety data sheets (SDSs) for procedures, if in the eye, tip head and wash the eye with warm water (from nose to side of face) for at least 20 minutes
- Symptoms to watch for: pain, burning, difficulty breathing, eye pain, vision changes
- Actions: once area is safe, Brush off excess chemicals with protective gloves. Apply large amounts of cool running water to the burn site until medical help arrives. Clothing can be removed during flushing. DO NOT try to neutralize the chemical.
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Description
Test your knowledge on the first aid procedures for various types of burns, including chemical and electrical burns. This quiz covers symptoms, treatment steps, and the anatomy of the skin related to burn injuries. Perfect for first aid training enthusiasts and professionals!