TNCC Burn and Thermal Trauma 2

Question 1

Electrical burns are often more severe than they appear externally because:

Accepted Answer

Current travels through the body causing extensive internal tissue destruction along its path

Answer

The skin is a poor conductor and limits surface injury

Answer

Delayed symptom onset masks the true depth

Answer

Exit wounds are always larger than entry wounds

Question 2

Which finding is most directly indicative of inhalation injury in a burn patient?

Accepted Answer

Carbonaceous (soot-tinged) sputum

Answer

Tachycardia greater than 120 beats per minute

Answer

Full-thickness burns covering the face

Answer

Blood pressure of 90/60 mmHg

Question 3

When monitoring fluid resuscitation in a burn patient, which parameter best indicates adequate tissue perfusion?

Accepted Answer

Urine output of 0.5–1 mL/kg/hour

Answer

Resolution of facial and periorbital edema

Answer

Reduction of pain score to below 3 out of 10

Answer

Heart rate decreasing to below 100 beats per minute

Question 4

What is the preferred route for opioid analgesic administration during the acute phase of major burn injury?

Accepted Answer

Intravenous administration

Answer

Subcutaneous injection

Answer

Oral administration

Answer

Intramuscular injection

Question 5

According to American Burn Association guidelines, which patient should be referred to a burn center?

Accepted Answer

Patient with partial-thickness burns greater than 10% TBSA

Answer

Adult with superficial burns covering 5% TBSA

Answer

Patient with minor chemical exposure and no blistering

Answer

Adult with a sunburn and localized pain

Question 6

Why must a patient with a high-voltage electrical injury be placed on continuous cardiac monitoring immediately?

Accepted Answer

Current traversing the heart can precipitate ventricular fibrillation and life-threatening dysrhythmias

Answer

Electrical burns cause predictable hypertension

Answer

Monitoring detects early signs of hyperglycemia

Answer

Electrical injuries uniformly cause bradycardia

Question 7

Why is hypothermia a major risk in patients with major burn injuries?

Accepted Answer

Loss of the skin barrier causes massive evaporative heat loss and eliminates thermoregulatory function

Answer

Burns dramatically increase the body's basal metabolic rate, causing hyperthermia

Answer

IV fluid administration produces vasodilation and heat dissipation

Answer

Opioid analgesics suppress thermoregulatory centers in the brain