CWS Wound Care 4

Question 1

Which organism is MOST commonly associated with biofilm formation in chronic wounds?

Accepted Answer

Staphylococcus aureus

Answer

Staphylococcus aureus is the most frequently identified organism in chronic wound biofilms, contributing to persistent inflammation and healing failure.

Question 2

What is the PRIMARY mechanism of action of hyperbaric oxygen therapy (HBOT) in wound healing?

Accepted Answer

Increases tissue oxygen tension to stimulate angiogenesis and immune function

Answer

HBOT delivers 100% oxygen at increased atmospheric pressure, dramatically raising tissue pO2, which stimulates angiogenesis, enhances leukocyte bactericidal activity, and promotes collagen synthesis.

Question 3

A patient with a sacral pressure injury has black, hard, dry eschar with no fluctuance or drainage. Per NPUAP guidelines, what is the MOST appropriate initial management?

Accepted Answer

Leave intact and monitor unless signs of infection develop

Answer

Stable, dry eschar on heels and in some sacral locations can serve as a protective biological cover and should not be debrided unless infection signs appear.

Question 4

Which nutritional marker BEST reflects a patient's acute protein status over the previous 2–3 days?

Accepted Answer

Prealbumin (transthyretin)

Answer

Prealbumin has a half-life of 2–3 days, making it the most sensitive short-term indicator of acute protein nutritional status compared to albumin's 20-day half-life.

Question 5

In the context of venous insufficiency wounds, the term 'lipodermatosclerosis' refers to:

Accepted Answer

Chronic skin and subcutaneous tissue fibrosis from venous hypertension

Answer

Lipodermatosclerosis is fibrosis and induration of the skin and subcutaneous tissue caused by chronic venous hypertension, often presenting with an inverted champagne bottle appearance.

CWS Exam Practice Test

CWS Exam Practice Test

CWS Wound Care 4