Burn Pathophysiology & Wound Care Management Flashcards
7 cards from real CBRN practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Burn Pathophysiology & Wound Care Management flashcards as text
A burn patient develops Curling's ulcer. Which burn-related mechanism is the primary cause?
Answer: Hyperacidity from stress response and mucosal ischemia
Curling's ulcer results from splanchnic vasoconstriction and mucosal ischemia combined with increased gastric acid secretion during the stress response.
Which clinical sign best differentiates a superficial partial-thickness burn from a deep partial-thickness burn?
Answer: Wound color (pink vs. pale/mottled)
Superficial partial-thickness burns appear pink and moist, while deep partial-thickness burns are pale, mottled, or white due to greater dermal destruction.
A 70 kg patient has 40% TBSA burns. Using the Parkland formula, how many mL of Lactated Ringer's should be administered in the first 8 hours post-burn?
Answer: 5,600 mL
Parkland: 4 mL × 70 kg × 40% = 11,200 mL total; half (5,600 mL) is given in the first 8 hours.
Mafenide acetate (Sulfamylon) is preferred over silver sulfadiazine in which clinical scenario?
Answer: Deep burns with thick eschar requiring penetration
Mafenide acetate penetrates eschar effectively, making it superior for burns with thick eschar where penetration is critical.
During burn wound excision, which surgical technique involves removing layers of burn tissue until viable bleeding tissue is encountered?
Answer: Sequential (tangential) excision
Tangential (sequential) excision removes thin layers of burned tissue until a healthy, bleeding wound bed is exposed, preserving viable tissue.
Which electrolyte abnormality is most commonly seen during the first 48 hours of major burn resuscitation?
Answer: Hyperkalemia
Massive cell destruction releases intracellular potassium, causing hyperkalemia in the immediate post-burn period.
A burn patient's wound culture grows Pseudomonas aeruginosa. Which topical antimicrobial provides the best coverage for this organism?
Answer: Silver nitrate 0.5% solution
Silver nitrate 0.5% solution provides broad-spectrum coverage including Pseudomonas and is used for large burn wounds with gram-negative colonization.