Certified Wound Ostomy Nurse (CWON) Practice Test

Which moisture barrier product is non-occlusive and suitable for skin that is experiencing diaphoresis or incontinence?

1. Alcohol free liquid barrier films

2. Zinc oxide

3. Dimethicone products

4. Petrolatum products

The correct answer is: Dimethicone products

The choice of dimethicone products as a suitable moisture barrier for skin experiencing diaphoresis or incontinence is based on their unique properties. Dimethicone, a silicone-based compound, creates a non-occlusive barrier that allows moisture to escape from the skin while providing protection against irritants. This is particularly beneficial in cases of sweating (diaphoresis) or urinary/fecal incontinence, where skin health is at risk due to excess moisture and potential exposure to irritants. Dimethicone products are designed to be breathable, enabling the skin to maintain its natural moisture balance and preventing maceration, which is common when using occlusive barriers. Additionally, these products are often well-tolerated by the skin, minimizing the risk of allergic reactions or irritation, making them a preferred choice for sensitive or compromised skin. In contrast, other products listed may not offer the same breathable characteristics. For example, alcohol-free liquid barrier films can provide a protective layer but may not be as effective in high-moisture conditions. Zinc oxide is primarily used for its protective and soothing properties, often seen in diaper rash ointments but can be occlusive. Petrolatum products, while they provide a good moisture barrier, are highly occlusive and may not