A nurse is obtaining an aerobic wound culture for a client. Which of the following actions should the nurse take first?

Choice A rationale: This describes a full-thickness burn with eschar formation, not a deep partial-thickness burn.
Choice B rationale: This may indicate a deeper burn involving the subcutaneous tissue, but the absence of blisters makes it less characteristic of a deep partial-thickness burn.
Choice C rationale: This suggests a full-thickness burn with damage to nerve endings, not a deep partial-thickness burn.
Choice D rationale: A deep partial-thickness burn is characterized by a pink or mottled appearance with the presence of blisters. This type of burn involves damage to the epidermis and portions of the dermis, causing pain and sensitivity to touch.

A. Swabbing the wound bed is necessary to obtain the culture specimen, but it must not be done until after the wound and surrounding area have been cleansed. Swabbing an uncleaned wound will collect superficial skin flora and debris rather than the true pathogens causing the infection.

B. According to evidence-based practice and nursing guidelines for wound care, the nurse must first cleanse the wound and surrounding area with sterile saline (or an approved non-antiseptic cleanser) to remove exudate, topical medications, and normal skin flora. This ensures that the culture specimen reflects the actual microorganisms responsible for the internal wound infection, making it the highest priority first step.

C. Donning sterile gloves is an appropriate action to maintain surgical asepsis during a sterile dressing change or wound culture procedure, but it is not the first action. The nurse typically wears clean gloves to remove the old dressing and cleanse the wound before transitioning to sterile gloves, or performs hand hygiene before preparing the sterile culture kit.

D. Placing the collection tube into a biohazard specimen bag is a necessary final step performed after the specimen has been successfully collected, labeled, and sealed to ensure safe transport to the laboratory, so it cannot be the first action taken.