EMT Soft-Tissue Injuries Practice Test 2026 – Complete Exam Prep

An occlusive dressing is designed to create a barrier that prevents air and moisture from reaching a wound, which is essential for promoting healing and protecting the injury from contamination. Among the options provided, gauze pads are generally not appropriate for use as occlusive dressings because they are made of absorbent material and allow air to pass through, which can lead to desiccation of the wound and increase the risk of infection.

In contrast, vaseline gauze, plastic, and aluminum foil are designed to provide a tight seal over the wound. Vaseline gauze has a petroleum-based layer that prevents moisture loss while allowing some drainage. Plastic creates a complete barrier against moisture and air, which can be very effective in wound management. Similarly, aluminum foil can serve as an effective occlusive dressing due to its impermeability, keeping the wound moist and protected from external contaminants.

Thus, gauze pads do not fulfill the occlusive requirement due to their porosity and absorbent nature, making them unsuitable for this purpose.