A practical nurse is tasked with collecting an aerobic wound culture from a client's healing surgical incision. To ensure an accurate specimen and minimize the risk of sample contamination, in what chronological order should the nurse perform the following actions?
- 1Remove the existing dressing and visually assess the wound bed.
- 2Cleanse the wound gently with sterile normal saline.
- 3Rotate a sterile swab over an area of clean granulation tissue.
- 4Insert the swab into the appropriate transport tube without touching the outer edges.
- 5Secure the cap, label the specimen container, and prepare it for laboratory transport.
Answer
The correct sequence for collecting a wound culture is to first remove the dressing and assess the wound, then cleanse the area with sterile saline, collect the specimen from clean granulation tissue, insert the swab into the transport tube, and finally label the container for transport.
To collect a clinically accurate wound culture and reduce the risk of sample contamination, the nurse must follow a strict sequential protocol. First, the wound is exposed by removing the old dressing. Second, it is critical to irrigate or cleanse the wound with sterile saline to remove surface exudate and resident skin flora. Third, the nurse swabs clean, viable granulation tissue rather than pus or necrotic tissue to capture the true pathogen. Fourth, the swab is immediately secured in the transport tube to maintain sterility. Finally, the container is labeled at the bedside to ensure accurate client identification before it leaves the room.
Step-by-Step Solution
Key Concept
Proper wound culture technique requires cleansing the wound prior to swabbing to isolate the true infectious pathogen and prevent sample contamination.