CBRN Infection Prevention & Critical Care Monitoring 4

Question 1

A patient with a 40% TBSA burn develops candidal wound colonization. Which antifungal topical agent is most commonly used?

Accepted Answer

Nystatin powder

Answer

Nystatin powder is the preferred topical antifungal for burn wound candidal colonization because it is well tolerated and does not interfere with wound care.

Question 2

During a dressing change, the nurse notes green discoloration and a fruity odor from a burn wound. Which pathogen is most likely responsible?

Accepted Answer

Pseudomonas aeruginosa

Answer

Pseudomonas aeruginosa produces pyocyanin, causing characteristic blue-green wound discoloration, and secretes enzymes that produce a fruity (grape-like) odor.

Question 3

What is the primary reason burn nurses use strict sterile technique rather than clean technique during wound debridement?

Accepted Answer

Burn wounds lack skin barrier, making them highly susceptible to exogenous contamination

Answer

Absence of the skin barrier in burn wounds creates a direct portal for microorganism entry, necessitating sterile technique to prevent infection.

Question 4

A burn patient's morning labs show WBC 2,800 cells/µL (down from 18,000 yesterday). What does this leukopenia suggest?

Accepted Answer

Bone marrow suppression or overwhelming sepsis

Answer

A sudden drop in WBC to leukopenic levels in a burn patient is an ominous sign indicating bone marrow suppression from overwhelming sepsis or severe systemic illness.

Question 5

Which monitoring interval is recommended for blood glucose in critically ill burn patients receiving insulin infusions?

Accepted Answer

Every 15–30 minutes during titration, then every 1–2 hours when stable

Answer

Frequent glucose monitoring every 1–2 hours (or every 15–30 min when adjusting doses) is required to prevent hypoglycemia while achieving glycemic targets.

(CBRN) Certified Burn Registered Nurse Practice Test

(CBRN) Certified Burn Registered Nurse Practice Test

CBRN Infection Prevention & Critical Care Monitoring 4