How To Fold A Surgical Gown For Aseptic Donning: Professional Sterile Processing Techniques

Folding a surgical gown requires a precise sequence of inside-out manipulation and accordion-style pleating to ensure the exterior remains sterile during the donning process. By adhering to AAMI standards and maintaining a strict aseptic technique, healthcare professionals ensure that the gown can be unfolded and donned in a single, fluid motion without compromising the sterile field.

Pre-Folding Protocol and Aseptic Workstation Requirements

Before beginning the folding process, the environment must be strictly controlled to prevent the introduction of lint, dust, or microbial contaminants. The folding area, typically located within a Sterile Processing Department (SPD) or a dedicated cleanroom, should be a flat, non-porous surface that has been disinfected according to facility policy. This stage is critical because even the highest quality gown becomes a liability if the folding process introduces bioburden before sterilization.

The focus here is on ensuring the gown is ready for the autoclave or ethylene oxide (ETO) chamber and, ultimately, for the surgeon’s use. A properly folded gown is not just about neatness; it is a mechanical delivery system for sterility.

Essential Gear and Prerequisite Standards

• Surgical Gowns: Typically composed of Spunbond-Meltblown-Spunbond (SMS) non-woven fabric or high-thread-count reusable cotton/polyester blends.
• Sterilization Indicators: Internal Type 4 or Type 5 chemical indicators to be placed within the folds.
• Surface Disinfectant: EPA-registered hospital-grade disinfectant for the folding table.
• Personal Protective Equipment (PPE): Scrub suit, hair cover, and mask to prevent shedding of skin cells or hair onto the gown.
• Inspection Lamp: High-intensity overhead lighting or a light table to check for pinholes and fabric thinning.
• Estimated Duration: 2 to 4 minutes per gown for inspection and folding.
• Standard Compliance: ANSI/AAMI PB70 standards for liquid barrier performance and AAMI ST79 for steam sterilization.

The Sequential Workflow for Standard Surgical Gown Folding

The primary goal of the folding sequence is to ensure that the person donning the gown only touches the inside surface (the part that contacts their scrubs). The exterior of the gown (the side facing the patient) must remain untouched. This is achieved through a technique often called the "inside-out" or "book-fold" method combined with accordion pleating.

Step 1: Inspection and Surface Preparation

Place the surgical gown on the clean folding table. The first action is a meticulous visual inspection. Hold the gown up to a light source to check for "striking" (moisture spots), tears, or thinning of the material. For reusable gowns, check for any residual stains that might suggest a failure in the laundering process.

Warning: Never use a gown that has visible lint, hair, or structural damage. Even a microscopic hole compromises the fluid-barrier integrity required for AAMI Level 3 or 4 procedures.

1. Lay the gown flat with the front side (the side with the chest reinforcement) facing down on the table.
2. Align the neckband and the hem to ensure the fabric is not twisted.
3. Smooth out all wrinkles with your hands, moving from the center toward the edges to avoid trapping air pockets.

Step 2: Orienting the Sleeves and Ties

The sleeves are the most frequent source of contamination if they dangle during the donning process. They must be tucked securely inside the folds.

1. Take the right sleeve and fold it toward the center of the gown. The cuff should be positioned near the waistline but kept entirely on the "inside" surface of the gown.
2. Repeat this for the left sleeve, ensuring the two sleeves do not overlap in a way that creates excessive bulk.
3. Locate all ties (waist and neck). These must be folded neatly so they do not protrude from the final bundle. If the gown uses a "transfer card" for the ties, ensure it is positioned according to manufacturer instructions.

Pro-Tip: Always ensure the sleeve cuffs are tucked deep enough that they won't slip out during the accordion fold. A dangling cuff is a guaranteed breach of the sterile field.

Step 3: Executing the Longitudinal Folds

The longitudinal folds reduce the width of the gown to the width of the final package, typically matching the size of the sterilization wrap.

1. Fold the far side of the gown (the side furthest from you) toward the center line. This fold should cover approximately one-third of the gown's width.
2. Fold the near side of the gown toward the center, overlapping the first fold slightly or meeting it at the midline depending on the specific width of the gown.
3. At this stage, the gown should look like a long, narrow rectangle. The "outside" of the gown is now hidden within the folds, and only the "inside" (the back of the gown) is visible.

Step 4: The Accordion Pleat Technique

The accordion fold is the most critical step for the end-user. It allows the gown to "telescope" or drop down when the surgeon grabs the neckband, preventing the gown from touching the floor or the surgeon's unsterile scrubs.

1. Start at the bottom hem of the gown. Fold about 10-15 centimeters of the fabric upward.
2. Fold the fabric back on itself in the opposite direction (downward).
3. Repeat this back-and-forth "Z-fold" or accordion motion until you reach the neckband.
4. The final result should be a compact square or rectangle with the neckband sitting prominently on top.

Pro-Tip: The neckband should be the most accessible part of the bundle. When the surgeon picks up the gown, they should be able to slide their hands into the shoulder area immediately.

Step 5: Final Packaging and Indicator Placement

The folded gown must now be prepared for the autoclave.

1. Insert a Type 4, 5, or 6 chemical indicator into the center of the accordion folds. This ensures that the steam or gas has penetrated the densest part of the bundle.
2. Place a sterile towel on top of the folded gown if required by your facility's standardized surgical pack recipe.
3. Wrap the gown in double-layer sterilization wrap (SMS wrap) using either the envelope fold or the square fold technique.
4. Secure with indicator tape, clearly marking the date of sterilization, the load number, and the initials of the technician.

AAMI Level Classifications and Material Performance Metrics

Choosing the correct gown and folding technique depends on the expected fluid exposure during surgery. The Association for the Advancement of Medical Instrumentation (AAMI) defines four levels of protection.

Addressing Common Failures in Gown Preparation and Sterility Integrity

Failure in the folding or sterilization process can lead to surgical site infections (SSIs) or occupational exposure for medical staff. Understanding the root causes of these failures is essential for any sterile processing professional.

• Failure: Moisture found inside the gown pack after sterilization.

  
  
  
  • Root Cause: This is often caused by folding the gown too tightly, which prevents steam from circulating and subsequently drying. It can also result from improper loading of the autoclave (e.g., stacking gown packs on top of one another).
  • Actionable Fix: Implement a "looser" accordion fold and ensure the pack is placed on its edge in the sterilizer rack rather than flat. This promotes better steam penetration and condensate drainage.

• Failure: The gown "flips" the wrong way when the surgeon opens it.

  
  
  
  • Root Cause: The gown was folded "outside-out" rather than "inside-out." This forces the surgeon to touch the sterile exterior to fix the orientation, contaminating the gown.
  • Actionable Fix: Re-train staff on the "book-fold" orientation. The front of the gown must always be the first thing placed face-down on the table so that the final folds expose only the inner neck area.

• Failure: Tears or holes discovered at the point of use.

  
  
  
  • Root Cause: Excessive mechanical stress during the folding process or sharp edges on the folding table. In reusable gowns, this is often due to the degradation of fibers after repeated sterilization cycles.
  • Actionable Fix: Use a light table for inspection before folding to catch micro-perforations. Establish a maximum "cycle count" for reusable gowns, after which they are retired regardless of visual appearance.

Frequently Asked Questions

Why is the accordion fold preferred over a simple roll?

The accordion fold is essential because it allows the gown to expand vertically using gravity when held by the neckband. A rolled gown would require the user to manually unroll it, significantly increasing the risk of the gown's exterior touching a non-sterile surface or the user's unsterile arms.

How do I identify the inside of the gown from the outside?

The inside of the gown is the surface that contains the manufacturer's label at the neck and the openings for the sleeves. The outside (the sterile side) is usually a smoother, continuous piece of fabric, often with a reinforced chest and forearm area (in Level 3 or 4 gowns) to provide extra fluid protection.

What should I do if the gown ties are dangling outside the wrap?

If ties are protruding from the sterilization wrap, the gown is considered contaminated and must be re-processed. Dangling ties act as a "wick" for moisture and microbes to enter the sterile package. Always ensure ties are tucked into the center of the accordion folds before wrapping.

Does the material type change the folding method?

While the basic "inside-out accordion" method remains the same, heavier AAMI Level 4 gowns are bulkier due to their reinforced layers. These gowns require larger folds and more careful air evacuation during the smoothing phase to ensure the final package is not too large for the sterilization chamber.

Can I fold multiple gowns together in one pack?

Gowns can be packaged together in "orthopedic packs" or "major procedure packs," but each gown must be individually folded and stacked. They should never be folded as a single unit, as this would make it impossible for a single surgeon to don one gown without contaminating the others in the stack.

Enhance Your Surgical Suite Safety

Adhering to rigorous sterile processing standards is the cornerstone of patient safety and successful surgical outcomes. Ensure your facility is equipped with the highest quality barrier protection by reviewing our latest AAMI-compliant surgical apparel.