Wound, Ostomy and Continence Nurses Society (WOCN) Practice Exam

What is the primary function of dressings containing methylene blue and crystal violet?

1. Bacteriostatic for most organisms including MRSA and VRE

2. Enhance wound healing through hydration

3. Provide nutritional support to the wound site

4. Act as a barrier to external contaminants

The correct answer is: Bacteriostatic for most organisms including MRSA and VRE

The primary function of dressings containing methylene blue and crystal violet is to be bacteriostatic for most organisms, including MRSA (Methicillin-Resistant Staphylococcus Aureus) and VRE (Vancomycin-Resistant Enterococci). These dyes possess antimicrobial properties that inhibit the growth of bacteria by interfering with their cellular processes. This is particularly important in wound care, as controlling bacterial proliferation is crucial for preventing infection, promoting healing, and improving outcomes in wound management. In addition, these dressings can provide some degree of color change indicator, helping clinicians assess the status of the wound. Their bacteriostatic properties are especially beneficial in clinical settings where patients may be at increased risk for infections due to compromised immune systems or postoperative care. Other functions mentioned, such as enhancing wound healing through hydration, providing nutritional support, or acting as a physical barrier to contaminants, are indeed important aspects of wound dressings, but they do not specifically pertain to the unique properties and functions of dressings containing methylene blue and crystal violet. These dressings are primarily valued for their antimicrobial effects rather than hydration, nutrition, or barrier protection alone.