Podcast
Questions and Answers
A patient presents with a burn that is pink, dry, and painful, but the skin's barrier function is intact. Which type of burn is most likely?
A patient presents with a burn that is pink, dry, and painful, but the skin's barrier function is intact. Which type of burn is most likely?
- First-degree burn (correct)
- Third-degree burn
- Fourth-degree burn
- Second-degree burn
What is the primary distinction between second-degree burns and third-degree burns?
What is the primary distinction between second-degree burns and third-degree burns?
- The depth of tissue damage. (correct)
- The level of pain experienced.
- The healing time required.
- The presence of blisters.
A patient has a burn that appears waxy white and leathery. They report no pain in the affected area. What type of burn is indicated by these characteristics, and why is there a lack of pain?
A patient has a burn that appears waxy white and leathery. They report no pain in the affected area. What type of burn is indicated by these characteristics, and why is there a lack of pain?
- Chemical burn, due to the numbing effect of the chemical agent.
- First-degree burn, due to the superficial nature of the burn.
- Third-degree burn, due to destruction of nerve sensors. (correct)
- Second-degree burn, due to nerve damage.
A chemical burn is MOST likely caused by contact with which of the following?
A chemical burn is MOST likely caused by contact with which of the following?
For a burn patient, which assessment would be most useful in differentiating between a deep second-degree burn and a third-degree burn?
For a burn patient, which assessment would be most useful in differentiating between a deep second-degree burn and a third-degree burn?
What factor primarily determines the severity of a thermal burn?
What factor primarily determines the severity of a thermal burn?
A patient touching a live wire sustains an electrical burn. Besides a contact burn, what other potential internal injury should the healthcare provider be MOST concerned about?
A patient touching a live wire sustains an electrical burn. Besides a contact burn, what other potential internal injury should the healthcare provider be MOST concerned about?
Which of the following best describes the healing process of a second-degree burn?
Which of the following best describes the healing process of a second-degree burn?
In a trauma situation, a patient has a large flap of skin torn loose from their forearm. What is the MOST immediate concern regarding this injury?
In a trauma situation, a patient has a large flap of skin torn loose from their forearm. What is the MOST immediate concern regarding this injury?
A patient presents with multiple small, raised, itchy areas on their skin. They report recently trying a new medication. This presentation is MOST consistent with:
A patient presents with multiple small, raised, itchy areas on their skin. They report recently trying a new medication. This presentation is MOST consistent with:
A child presents with a superficial skin infection characterized by small vesicles that rupture, leaving honey-colored crusts. Which of the following is the MOST likely causative agent?
A child presents with a superficial skin infection characterized by small vesicles that rupture, leaving honey-colored crusts. Which of the following is the MOST likely causative agent?
After treating a patient with head lice, what information should be given to the family to prevent its spread?
After treating a patient with head lice, what information should be given to the family to prevent its spread?
A patient has a deep laceration on their leg that is actively bleeding. What is the FIRST priority in managing this wound?
A patient has a deep laceration on their leg that is actively bleeding. What is the FIRST priority in managing this wound?
A patient presents with a red, swollen, and tender area on their lower leg. The area is warm to the touch and has an indefinite border. Which of the following conditions is MOST likely?
A patient presents with a red, swollen, and tender area on their lower leg. The area is warm to the touch and has an indefinite border. Which of the following conditions is MOST likely?
Which of the following injuries would necessitate irrigation with normal saline in the prehospital setting?
Which of the following injuries would necessitate irrigation with normal saline in the prehospital setting?
While providing first aid, you notice a small, straight cut on a patient's finger caused by a clean kitchen knife. How should this wound be classified?
While providing first aid, you notice a small, straight cut on a patient's finger caused by a clean kitchen knife. How should this wound be classified?
Flashcards
What are Burns?
What are Burns?
Injury caused by heat, chemicals, electricity, or radiation.
Thermal Burns
Thermal Burns
Caused by fire or other heat sources, occurring at temperatures above 44°C.
Chemical Burns
Chemical Burns
Result from contact with strong acids, alkalis, or corrosive materials.
Electrical Burns
Electrical Burns
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Radiation Burns
Radiation Burns
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First Degree Burns
First Degree Burns
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Second Degree Burns
Second Degree Burns
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Third Degree Burns
Third Degree Burns
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Rule of Nines
Rule of Nines
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Laceration
Laceration
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Avulsion
Avulsion
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Abrasion
Abrasion
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Allergy/Uticaria
Allergy/Uticaria
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Lice
Lice
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Cellulitis
Cellulitis
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Impetigo
Impetigo
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Study Notes
- Integumentary Pathophysiology, covering traumatic injuries, infectious/inflammatory conditions, and skin conditions
Traumatic Injuries
- Includes burns, lacerations, avulsions, and abrasions
Burns
- Classified as first, second, or third degree depending on the layer affected, level of pain, the way it presents and healing time
Types/Sources of Burns
- Thermal burns from fire or heat sources at temperatures higher than 44 degrees C, depending on the concentration, amount of heat energy, and duration of exposure
- Chemical burns occur when skin contacts strong acids, alkalis, bases, or corrosive materials
- Electrical burns are from power sources, often contact burns
- Radiation burns involve alpha, beta, and gamma ionizing radiation
First Degree Burns
- Also known as superficial burns
- Involves only the outer layers of the epidermis
- Presents as pink, dry, and painful
- Skin maintains its function as a water vapor and bacterial barrier
- Usually heals in 3-10 days
Second Degree Burns
- Also known as partial thickness burns
- Involves the epidermis and various degrees of the dermis
- Presents as painful, moist, red, and blistered
- The skin underneath the blisters is pink or red and sensitive to temperature changes, air exposure, and touch
- Heals in approximately 1-2 weeks
Third Degree Burns
- Also known as full thickness burns
- Can extend into the subcutaneous tissue and involve muscle or bone
- The presentation may be waxy white, yellow to tan, brown, deep red, or black
- Burns appear hard, dry, and leathery
- Nerve sensors are destroyed
- Healing time varies and can take weeks or months
Burn Combinations
- Combinations of burn types are common
Rule of Nines
- Is used to estimate the total body surface area (TBSA) affected by burns.
Lacerations
- Are cuts inflicted by a sharp instrument
- Can be clean or jagged incisions through the skin surface and underlying structure
- 'Laceration' usually refers to jagged wounds, while 'incision' usually refers to clean wounds
- Severity depends on the depth and damaged structures
- Treatment priority is to control bleeding via direct manual pressure over the wound
Avulsions
- Are flaps of skin torn loose, either partially or completely
- May be accompanied by profuse bleeding
- The primary risk is loss of blood supply to the avulsed flap
- Treatment involves irrigating with normal saline and placing the flap into its anatomical position
Abrasions
- Superficial wounds
- Occur when skin is rubbed or scraped
- Typically ooze small amounts of blood
- May be painful and contaminated
- Avoid cleaning in the prehospital environment
Allergy/Uticaria
- Is a response to an allergic reaction or anaphylaxis
- Multiple small raised areas on the skin
- Are also known as "Hives"
- Can be itchy
Infections/Infestations
- Includes conditions such as lice, cellulitis, and impetigo
Lice
- Small insects that live in hair and feed on blood through the skin
- Three types: head louse (Pediculus humanus capitis), body louse (P humanus corporis), and pubic louse (Phthirus pubis)
- All types are acquired through direct contact with a person with an infestation
- Head and body lice can be acquired from objects like hats, combs, or clothes infested with lice
- Pubic or crab lice transmitted through intimate physical or sexual contact
- The communicable period ends when all lice and eggs are destroyed
Cellulitis
- A deeper bacterial infection affecting the dermis and subcutaneous tissues
- Commonly caused by group A strep
- Can also be specific to activities such as fish handling, swimming in fresh/salt water, or animal bites or scratches.
- Pre-existing wounds are often entry points
- Presents as expanding red, swollen, tender plaque with an indefinite border
- Often accompanied by fever, erythema, heat, edema, and pain.
Impetigo
- A common, superficial bacterial infection caused by group A strep
- Most commonly occurs in infants and young children and is rare in adults
- Appears as a small vesicle/pustule (can be itchy & painful) on the face or elsewhere on the body
- As the lesion ruptures, it leaves a honey-colored crust
- Highly infectious
Types of Skin Cancer
- Basal cell carcinoma
- Squamous cell carcinoma
- Malignant melanoma, the most serious type of skin cancer, with early metastases being common
ABCD Rules for Melanoma Recognition
- A: Asymmetry
- B: Border
- C: Color varying within the lesion
- D: Diameter greater than 6 mm
Abnormal Skin Conditions
- Cyanosis: Blue colour due to lack of oxygen in hemoglobin because of respiratory or cardiac problems
- Erythema: Redness due to increased blood supply from exercise, fever, hemorrhage under skin, or inflammation
- Pallor: Paleness or blanching due to decreased blood supply or hemoglobin (e.g., anemia)
- Jaundice: Yellowish tones in skin and eyes due to increased bilirubin in the blood, related to liver disease or obstructed bile duct, preventing bile removal
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Description
Explore burn types, from first to third degree, focusing on characteristics, pain levels, and skin damage. Understand the nuances of chemical and electrical burns, emphasizing internal injury risks. Learn to differentiate burn depths and the critical factors influencing burn severity in trauma situations.