CBM CBM Inhalation Injury & Respiratory Management 3

Question 1

Acrolein, a toxic aldehyde released in fires, primarily injures which part of the respiratory tract?

Accepted Answer

Upper airways and bronchial mucosa causing direct chemical burns

Answer

Acrolein is a highly reactive aldehyde that causes direct chemical burns to the upper airway and bronchial mucosa, triggering severe inflammation.

Question 2

Which parameter is most useful for monitoring the adequacy of CO elimination in a hyperbaric oxygen treatment session?

Accepted Answer

Serial carboxyhemoglobin levels via co-oximetry

Answer

Co-oximetry on arterial or venous blood directly measures carboxyhemoglobin percentage, accurately tracking CO elimination unlike standard pulse oximetry.

Question 3

In pediatric burn patients with suspected inhalation injury, which feature distinguishes their airway anatomy as a greater risk factor compared to adults?

Accepted Answer

Relatively smaller and more compliant airways that obstruct more easily with edema

Answer

Children have proportionally narrower airways where even small amounts of edema produce disproportionate increases in airway resistance per Poiseuille's law.

Question 4

High-frequency percussive ventilation (HFPV) is used in inhalation injury patients primarily because it achieves which benefit?

Accepted Answer

Mobilizes secretions and improves clearance while delivering low mean airway pressures

Answer

HFPV combines conventional ventilation with high-frequency oscillations that loosen and mobilize secretions and casts while using lower mean airway pressures to reduce barotrauma.

Question 5

Smoke inhalation from wildland fires versus structural fires differs primarily in which toxic exposure profile?

Accepted Answer

Structural fires produce more synthetic polymer combustion products like HCN and CO, while wildland fires produce primarily organic particulate matter

Answer

Structural fires involve burning plastics, synthetic foams, and treated materials releasing HCN, CO, and chlorinated compounds, whereas wildland fires mainly produce organic particulates and CO.

(CBM) Certified Burn Manager Practice Test

(CBM) Certified Burn Manager Practice Test

CBM CBM Inhalation Injury & Respiratory Management 3