Which statement about bandages is true? a. An occlusive primary layer allows air to penetrate the wound. b. If a wound is exudative, a semiocclusive primary layer is indicated. c. The tertiary bandage layer contacts the wound surface (if a wound is present) and may be adherent or nonadherent and occlusive or semiocclusive. d. A dry-dry bandage has as its primary layer an adherent material soaked in saline.

b. If a wound is exudative, a semiocclusive primary layer is indicated.

Explanation:

The bandage is a material which is used to cover the wound or injury to provide support to the medical device used for dressing over the wound. A bandage often restricts the movement of the body part over which it is applied.

The primary layer of the bandage remains in contact with the body tissues.  The semiocclusive primary layer is applied over the wound if the serous fluid oozes out of the wound and to restrict the flow of exudate. This is applied to keep the wound in the moist state.

Based on above description, b. is the correct option related to the bandage.