How many sides do you tape an occlusive dressing?

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Multiple Choice

How many sides do you tape an occlusive dressing?

Explanation:
When you cover a chest wound with an occlusive dressing, you want to control air flow so air can escape but not be sucked back in. Taping three sides of the dressing creates a flutter valve: during exhalation, air can vent through the unsealed edge, but during inhalation atmospheric air is not easily drawn into the wound. This helps prevent a buildup of pressure in the chest (tension pneumothorax). Taping all four sides would seal the wound completely and could trap air, while taping fewer than three sides reduces the valve effect. So, three sides is the correct approach.

When you cover a chest wound with an occlusive dressing, you want to control air flow so air can escape but not be sucked back in. Taping three sides of the dressing creates a flutter valve: during exhalation, air can vent through the unsealed edge, but during inhalation atmospheric air is not easily drawn into the wound. This helps prevent a buildup of pressure in the chest (tension pneumothorax). Taping all four sides would seal the wound completely and could trap air, while taping fewer than three sides reduces the valve effect. So, three sides is the correct approach.

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