TCRN TCRN Burn and Inhalation Injuries 2

Question 1

A patient with burns over 40% TBSA is 8 hours post-injury. According to the Parkland formula, what percentage of the 24-hour fluid total should have been infused by this point?

Accepted Answer

50%

Answer

The Parkland formula calls for half (50%) of the 24-hour total (4 mL × kg × %TBSA) to be given in the first 8 hours post-injury.

Question 2

Which finding is most characteristic of carbon monoxide poisoning in a burn patient?

Accepted Answer

Cherry-red skin color

Answer

Cherry-red skin (carboxyhemoglobin-bound blood) is a classic sign of CO poisoning, though it is not always present; pulse oximetry is unreliable in CO poisoning as it reads falsely normal.

Question 3

A burn patient develops hoarseness, stridor, and oropharyngeal edema 2 hours after a house fire. What is the priority intervention?

Accepted Answer

Perform early endotracheal intubation

Answer

Progressive upper airway edema from inhalation injury mandates early endotracheal intubation before complete obstruction renders intubation impossible.

Question 4

Which parameter best guides fluid resuscitation adequacy in a major burn patient?

Accepted Answer

Urine output of 0.5–1 mL/kg/hr

Answer

Urine output of 0.5–1 mL/kg/hr is the most reliable indicator of adequate end-organ perfusion and guides burn resuscitation.

Question 5

A patient sustains burns to the anterior trunk, both arms, and the head. Using the Rule of Nines, what is the estimated TBSA burned?

Accepted Answer

45%

Answer

Anterior trunk = 18%, each arm = 9% (×2 = 18%), head = 9%, totaling 45% TBSA.

TCRN Exam Practice Test

TCRN Exam Practice Test

TCRN TCRN Burn and Inhalation Injuries 2