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Related Concept Videos

PPE Use in Healthcare Settings II: Doffing01:10

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The sequence of removing or doffing PPE starts with the gloves, as they are the most contaminated. Next is removal of the face shield or goggles, as they would interfere with removing other PPE. Then remove the gown, followed by the mask or respirator. Perform hand hygiene between steps if hands become contaminated and immediately after removing all PPE. Generally, the outside front and sleeves of the isolation gown, the goggles or the mask, the respirator, and the face shield are contaminated.
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PPE Use in Healthcare Settings I: Donning01:22

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Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
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Standard Precaution01:26

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Standard precautions are the minimum infection control safeguards used while caring for all patients, irrespective of their disease condition. They help prevent the spread of common infectious microorganisms to healthcare workers, patients, and visitors in all healthcare settings.
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
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Personal Protective Equipment01:20

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Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:
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Transmission-based Precautions II: Airborne and Protective Environment01:25

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Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
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Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
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Isolation gowns as a potential work hazard.

Abigail Schirmer1, Renard Sessions2, Nikolaus Gravenstein3

  • 1Florida State University College of Medicine, Tallahassee, FL, USA.

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|May 7, 2020
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Summary
This summary is machine-generated.

Lower-rated isolation gowns fail as bacterial barriers. Unrated, Level 1, and Level 2 isolation gowns showed significant bacterial transmittance, posing infection risks. Higher-rated gowns (Levels 3 and 4) provided effective bacterial isolation.

Keywords:
barriercontaminationinfection riskisolation gown ratingsafety

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Area of Science:

  • Infection Control
  • Biomedical Engineering
  • Materials Science

Background:

  • Isolation gowns are critical personal protective equipment (PPE) to prevent pathogen transmission between patients and healthcare providers.
  • Ineffective isolation gowns can lead to breaches in safety and increased risks of healthcare-associated infections.
  • Assessing the bacterial permeability of isolation gowns is crucial for ensuring their efficacy in clinical settings.

Purpose of the Study:

  • To compare the bacterial permeability of isolation gowns with different safety ratings.
  • To evaluate the effectiveness of isolation gowns in preventing simulated bacterial transmittance.
  • To determine the risk of contamination from patient to provider based on gown rating.

Main Methods:

  • Serial dilutions of Staphylococcus epidermidis were applied to simulated skin and contacted with isolation gowns (unrated to Level 4).
  • Bacterial transmittance was quantified by culturing both sides of the gowns.
  • Scanning electron microscopy (SEM) was used to visualize the physical structure and pore size of the gown materials.

Main Results:

  • Mean bacterial transmittance varied significantly by gown rating: unrated (50.4%), Level 1 (39.7%), Level 2 (16.3%), Level 3 (0.3%), and Level 4 (0.0%).
  • SEM revealed that pore sizes in unrated, Level 1, and Level 2 gowns were larger than Staphylococcus epidermidis.
  • Statistical analysis confirmed a significant difference in bacterial transmittance based on isolation gown rating.

Conclusions:

  • Unrated, Level 1, and Level 2 isolation gowns are ineffective barriers against bacterial transmission.
  • Higher-rated isolation gowns (Levels 3 and 4) provide effective bacterial isolation.
  • Lower-rated gowns may also be permeable to smaller viral particles, highlighting the importance of appropriate gown selection.