Podcast
Questions and Answers
What is a key characteristic of a full-thickness burn?
What is a key characteristic of a full-thickness burn?
- It leads to increased sensation in the affected area.
- It involves the epidermis, dermis, hair follicles, and nerve endings. (correct)
- It affects only the epidermis.
- It results in minimal scar potential.
What is the typical healing time for a deep (partial-thickness) burn?
What is the typical healing time for a deep (partial-thickness) burn?
- 1–2 weeks
- 6–8 weeks
- 9–12 weeks
- 3–5 weeks (correct)
Which of the following statements about subdermal burns is correct?
Which of the following statements about subdermal burns is correct?
- They have a low scar potential.
- They only damage the upper layers of skin.
- They may involve exposure of underlying fat or muscles. (correct)
- They require no surgical intervention for healing.
What primary cause is associated with subdermal burns?
What primary cause is associated with subdermal burns?
Which statement about the sensory effects of full-thickness burns is true?
Which statement about the sensory effects of full-thickness burns is true?
What is the primary composition of the dermis layer of the skin?
What is the primary composition of the dermis layer of the skin?
Which classification system is used to estimate total body surface area burned?
Which classification system is used to estimate total body surface area burned?
What characterizes a superficial burn?
What characterizes a superficial burn?
What is the healing time for a superficial partial-thickness burn?
What is the healing time for a superficial partial-thickness burn?
Which of the following is a common cause of deep partial-thickness burns?
Which of the following is a common cause of deep partial-thickness burns?
How does the Lund-Browder chart improve on the Rule of Nines for estimating burn area?
How does the Lund-Browder chart improve on the Rule of Nines for estimating burn area?
What type of burn involves blisters and significant pain?
What type of burn involves blisters and significant pain?
What is the scar potential for superficial burns?
What is the scar potential for superficial burns?
Flashcards
Full-thickness burn
Full-thickness burn
A burn that affects the epidermis and dermis, along with hair follicles, sweat glands, and nerve endings. These burns cause deep pain and are non-blanching.
Subdermal burn
Subdermal burn
A burn that extends beyond the dermis to deeper layers of the skin, such as fat, muscles, and bones. These burns are characterized by charring and exposed tendons or muscle.
Appearance of full-thickness burn
Appearance of full-thickness burn
Full-thickness burns are characterized by a pale, non-blanching appearance. This means that the burn area doesn't turn white when pressure is applied.
Nerve damage in subdermal burns
Nerve damage in subdermal burns
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Treatment of full-thickness burns
Treatment of full-thickness burns
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Epidermis
Epidermis
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Dermis
Dermis
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Burn
Burn
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Rule of Nines
Rule of Nines
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Lund-Browder Chart
Lund-Browder Chart
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Superficial Burn
Superficial Burn
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Superficial Partial-Thickness Burn
Superficial Partial-Thickness Burn
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Deep Partial-Thickness Burn
Deep Partial-Thickness Burn
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Study Notes
Skin Layers and Burns
- Skin has two main layers: epidermis (outermost) and dermis (inner).
- Dermis is fibrous connective tissue with collagen and elastin.
- Epidermis has four to five layers, varying by location and skin type.
- Burns are thermal injuries damaging skin layers.
Burn Classification: Size
- Total Body Surface Area (TBSA): Used to estimate burn size.
- The Rule of Nines divides the body into areas of 9% or multiples of 9%:
- Head and Neck: 9%
- Each Upper Extremity: 9%
- Each Lower Extremity: 18%
- Front/Back of Trunk: 18% each
- Perineum: 1%
- The Lund-Browder chart is a more precise method, considering age variations.
Burn Classification: Depth
- Burn depth is assessed clinically based on appearance, sensitivity, and pliability.
- Superficial Burn:
- Affects only the epidermis.
- Mild pain, no blisters, dry skin.
- Heals in 3-7 days.
- Common cause: sunburn, brief exposure to hot liquids/chemicals.
- No scarring risk.
- Superficial Partial-thickness Burn:
- Damages epidermis and upper dermis.
- Moderate pain, wet blisters, erythema (redness).
- Heals in 1-3 weeks.
- Common causes: severe sunburn, prolonged exposure to hot liquids.
- Minimal scarring risk.
- Deep (Partial-thickness) Burn:
- Damages epidermis and deep dermis layers, including hair follicles and sweat glands.
- Significant pain, erythema (redness), blisters (maybe).
- High risk of infection, possible grafting.
- Potential for impaired sensation.
- Common causes: flames, prolonged contact with hot objects.
- High scarring risk.
- Healing time: 3-5 weeks.
- Full-thickness Burn:
- Damages epidermis, dermis, hair follicles, sweat glands, and nerve endings.
- No pain to light touch (except at deep partial-thickness borders).
- Pale, nonblanching burn.
- Requires skin graft.
- Common causes: extreme heat, prolonged contact with heat, chemicals.
- Extremely high scarring risk.
- Subdermal Burn:
- Full-thickness burn extending to underlying tissues (fat, muscle, bone).
- Charring, exposed tissue (fat, tendons, muscles).
- Electrical burns involve nerve destruction.
- Peripheral nerve damage is common.
- Requires surgery (wound closure or amputation).
- Very high scarring risk.
- Common causes: electrical burns, severe long-duration fires.
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