Which of the following is NOT a characteristic of the primary bandage layer?

The primary bandage layer serves several important functions in wound management. Its characteristics are designed to promote healing and protect the wound. The correct answer highlights that a primary bandage layer does not need to be waterproof, which is not a critical requirement for its function.

The primary bandage layer is often made from non-adhesive materials to prevent irritation and trauma to the wound when the bandage is changed. Additionally, this layer must be breathable, allowing air circulation, which is important for the healing process. It also provides necessary cushioning and padding to protect the wound from further injury and minimize pain for the animal.

While a waterproof layer might be beneficial in certain situations, especially for maintaining the cleanliness of the bandage in wet conditions, it is not an inherent characteristic of the primary layer itself. Its primary role is focused more on protection and moisture control rather than waterproofing.