CBRN Burn Pathophysiology & Wound Care Management 3

Question 1

A burn patient develops Curling's ulcer. Which burn-related mechanism is the primary cause?

Accepted Answer

Hyperacidity from stress response and mucosal ischemia

Answer

Curling's ulcer results from splanchnic vasoconstriction and mucosal ischemia combined with increased gastric acid secretion during the stress response.

Question 2

Which clinical sign best differentiates a superficial partial-thickness burn from a deep partial-thickness burn?

Accepted Answer

Wound color (pink vs. pale/mottled)

Answer

Superficial partial-thickness burns appear pink and moist, while deep partial-thickness burns are pale, mottled, or white due to greater dermal destruction.

Question 3

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?

Accepted Answer

5,600 mL

Answer

Parkland: 4 mL × 70 kg × 40% = 11,200 mL total; half (5,600 mL) is given in the first 8 hours.

Question 4

Mafenide acetate (Sulfamylon) is preferred over silver sulfadiazine in which clinical scenario?

Accepted Answer

Deep burns with thick eschar requiring penetration

Answer

Mafenide acetate penetrates eschar effectively, making it superior for burns with thick eschar where penetration is critical.

Question 5

During burn wound excision, which surgical technique involves removing layers of burn tissue until viable bleeding tissue is encountered?

Accepted Answer

Sequential (tangential) excision

Answer

Tangential (sequential) excision removes thin layers of burned tissue until a healthy, bleeding wound bed is exposed, preserving viable tissue.

(CBRN) Certified Burn Registered Nurse Practice Test

(CBRN) Certified Burn Registered Nurse Practice Test

CBRN Burn Pathophysiology & Wound Care Management 3