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Difficulty: Very hardReduction of Risk Potential

A nurse is preparing to perform a routine sterile dressing change for a client's peripherally inserted central catheter (PICC). To minimize the risk of central line-associated bloodstream infection (CLABSI) and prevent catheter dislodgement, place the following nursing actions in the correct sequential order.

  1. 1Apply a surgical mask to the client and instruct them to turn their head away from the PICC site.
  2. 2Don clean gloves and carefully remove the existing transparent dressing by pulling it toward the catheter insertion site.
  3. 3Discard the old dressing and clean gloves, then perform thorough hand hygiene.
  4. 4Don sterile gloves and vigorously scrub the insertion site with a chlorhexidine applicator using back-and-forth friction.
  5. 5Allow the chlorhexidine solution on the skin to air dry completely without fanning or blowing.
  6. 6Apply a new sterile transparent occlusive dressing over the catheter insertion site.

Answer

The correct sequence prioritizes respiratory source control, followed by safe removal of the contaminated dressing, hand hygiene, sterile antisepsis, mandatory air drying, and final sterile occlusion.
The correct sequence systematically eliminates risks by moving from general environmental control (masking) to safe removal (clean technique), transitioning via hand hygiene to absolute asepsis (sterile gloves, friction scrub, air drying), and culminating in environmental sealing (occlusive dressing).

Step-by-Step Solution

1
Apply a surgical mask to the client and instruct them to turn their head away.
Establishes immediate respiratory droplet source control.
Airborne or droplet pathogens from the client's respiratory tract are a primary source of CLABSI. This must be prevented before exposing the vulnerable insertion site.
2
Don clean gloves and remove the existing dressing by pulling toward the insertion site.
The old dressing is safely detached without disturbing the catheter.
The old dressing is heavily contaminated with skin flora, requiring only clean gloves. Pulling toward the site prevents creating tension that could dislodge the catheter.
3
Discard the old dressing and clean gloves, then perform hand hygiene.
Removes contaminated materials and sanitizes the nurse's hands.
Hand hygiene acts as the critical bridge between the clean removal phase and the sterile application phase, ensuring no pathogens are transferred to the sterile supplies.
4
Don sterile gloves and scrub the site with a chlorhexidine applicator.
The insertion site undergoes chemical and mechanical antisepsis.
Sterile gloves maintain the integrity of the procedure. Chlorhexidine with back-and-forth friction physically disrupts bacterial biofilms in the epidermal layers.
5
Allow the chlorhexidine to air dry completely.
The antiseptic achieves its full bactericidal properties.
Chlorhexidine requires time to chemically destroy bacterial cell walls. Prematurely applying the dressing traps moisture (reducing efficacy), and fanning introduces airborne microbes.
6
Apply a new sterile transparent occlusive dressing.
The catheter site is securely sealed from the environment.
The transparent dressing provides a continuous, sterile barrier against microbial entry while allowing ongoing visual assessment for signs of infection.

Key Concept

Central line dressing changes mandate a strict sequential transition from clean technique (removing the contaminated dressing) to sterile technique (cleansing and applying the new dressing) to prevent CLABSI, while utilizing mechanical friction and proper drying times for antiseptics.
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Topics

Reduction of Risk Potential

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