CBM Infection Prevention & Treatment 2

Question 1

Which organism is most commonly responsible for invasive burn wound infections in the early post-burn period?

Accepted Answer

Staphylococcus aureus

Answer

Staphylococcus aureus predominates in the first 48–72 hours after a burn injury before gram-negative organisms take over.

Question 2

A burn patient develops a fever of 102°F on post-burn day 3 with no wound changes. What is the most likely cause?

Accepted Answer

Hypermetabolic inflammatory response

Answer

Fever in the first 48–72 hours post-burn is commonly attributable to the systemic inflammatory response rather than infection.

Question 3

What is the primary benefit of early excision and grafting in burn wound management regarding infection?

Accepted Answer

Removes the necrotic tissue that serves as a bacterial growth medium

Answer

Eschar removal eliminates the avascular necrotic tissue where bacteria proliferate and systemic antibiotics cannot reach.

Question 4

Which isolation precaution level is recommended for burn patients colonized with MRSA?

Accepted Answer

Contact precautions

Answer

Contact precautions (gown and gloves) are required to prevent MRSA transmission through direct or indirect contact.

Question 5

The quantitative wound biopsy threshold that indicates invasive burn wound infection is:

Accepted Answer

10⁵ organisms per gram of tissue

Answer

Greater than 10⁵ (100,000) organisms per gram of tissue is the established threshold for diagnosing invasive burn wound infection.

(CBM) Certified Burn Manager Practice Test