TNCC Burn Management 4

Question 1

During the emergent phase of burn care, the nurse should anticipate which hemodynamic changes due to the systemic inflammatory response?

Accepted Answer

Decreased cardiac output with increased systemic vascular resistance

Answer

In the emergent phase, massive capillary leak causes hypovolemia leading to decreased cardiac output, and catecholamine release increases SVR as a compensatory mechanism.

Question 2

A patient with 30% TBSA burns develops hyperthermia to 39.5°C on day 3. What is the most likely cause?

Accepted Answer

Normal hypermetabolic response to major burns

Answer

Major burns cause a sustained hypermetabolic state with elevated core body temperature (38–39°C) that is normal and not necessarily indicative of infection.

Question 3

Mafenide acetate (Sulfamylon) differs from silver sulfadiazine primarily because it:

Accepted Answer

Provides broader gram-negative coverage and penetrates eschar

Answer

Mafenide acetate penetrates eschar to treat underlying infection, making it superior for infected burns, but it causes metabolic acidosis as a known side effect.

Question 4

When assessing a burn patient's airway 6 hours after injury, which finding should prompt the most urgent action?

Accepted Answer

Stridor with increasing hoarseness

Answer

Stridor with worsening hoarseness indicates critical laryngeal edema that requires immediate intubation before the airway becomes inaccessible.

Question 5

For a patient with alkali (lye) chemical burns, irrigation with water should be performed for at least:

Accepted Answer

30 minutes or longer

Answer

Alkali burns require prolonged irrigation (30 minutes or more) because alkalis cause liquefactive necrosis and penetrate tissue more deeply than acids.

(TNCC) Trauma Nursing Core Course Certified Practice Test

(TNCC) Trauma Nursing Core Course Certified Practice Test

TNCC Burn Management 4