During doffing of PPE after caring for a patient with suspected Ebola virus disease, which sequence should the nurse follow to minimize contamination risk?
1Remove gloves first, then gown, followed by face shield, and finally the respirator mask
2Remove gown and gloves together as a unit, then face shield, followed by hand hygiene, and finally the respirator mask✓ 정답
3Remove respirator mask first, then face shield, followed by gown, and finally the gloves
4Remove face shield first, then gloves, followed by gown, and finally the respirator mask
해설
The correct sequence is removing gown and gloves together first to minimize contamination, followed by face shield, hand hygiene, and finally the respirator mask, per CDC guidelines for Ebola. Other sequences increase self-contamination risk.
Core Nursing Explanation
This question tests the critical skill of Personal Protective Equipment (PPE) doffing sequence for a high-consequence pathogen like Ebola virus disease (EVD). The core principle is to remove the most contaminated items first while protecting mucous membranes (eyes, nose, mouth) and non-intact skin, and to perform hand hygiene at the precise moment it becomes safe to do so.
Key Concept Analysis: The goal is to prevent self-contamination. During patient care, the outside surfaces of the gown and gloves are considered grossly contaminated. The face shield and respirator mask are considered less contaminated but still at risk from splash or self-touch. The sequence must create a "clean path" for the healthcare worker.
Answer Rationale: Key Point! The correct sequence (Option 2) follows the CDC's evidence-based protocol for pathogens spread via contact and droplet routes with high mortality, like Ebola.
1. Remove gown and gloves together: This is the most critical step. By removing them as a unit, you prevent the contaminated exterior of the gown from touching your skin or clothing when you peel off the gloves separately. The gloves are used to grasp and remove the gown, which is then rolled into a bundle for disposal.
2. Remove face shield/goggles: With clean hands (after removing the heavily soiled items), you can now safely handle the face shield by its headband or earpieces, avoiding the contaminated front.
3. Perform hand hygiene: This step is placed here to ensure hands are clean before touching the final item—the respirator mask—which sits near the mouth and nose.
4. Remove respirator mask: With clean hands, you remove the mask by the straps, not touching the front, which could be contaminated. This protects the airway from final exposure.
Distractor Analysis:
Watch out for confusion! Option 1 suggests removing gloves first. This is a common error. If you remove gloves first, your bare hands then touch the contaminated gown cuffs and ties, leading to immediate hand contamination.
Option 3 suggests removing the respirator mask first. This is extremely dangerous as your contaminated gloves would be touching the straps and potentially the mask surface near your mouth and nose, offering a direct route for pathogen entry.
Option 4 suggests removing the face shield first. While less risky than option 3, it is inefficient and still involves touching the shield with grossly contaminated gloves. The priority is always to remove the bulk contamination (gown/gloves) first.
Related Concepts: This protocol is specific to high-risk pathogens. For standard contact/droplet precautions (e.g., for MRSA or influenza), the sequence may be simplified (e.g., gloves, gown, face shield, mask, hand hygiene), but the principle of removing the most contaminated items first and performing hand hygiene at key points remains. Always follow the most current facility and CDC guidelines for the specific pathogen.
Concept Summary
Concept
Description
Rationale
PPE Doffing Principle
Remove from most contaminated to least contaminated.
Creates a "clean path" to protect the healthcare worker.
Gown & Gloves as a Unit
Key step for Ebola/High-Consequence Pathogens.
Prevents contaminated gown cuffs from touching skin during glove removal.
Hand Hygiene Timing
Perform immediately after removing gown/gloves and before removing mask.
Ensures clean hands touch the final item protecting the airway.
Respirator Mask Removal
Always last, with clean hands, using straps only.
Protects mucous membranes of the nose and mouth from final contamination.
1. Gown & Gloves together 2. Face Shield 3. Hand Hygiene 4. Respirator Mask
Gown/gloves removed as a unit. Hand hygiene is a formal step before mask removal.
Standard Contact/Droplet Precautions (e.g., MRSA, Flu)
1. Gloves 2. Gown 3. Face Shield/Goggles 4. Mask 5. Hand Hygiene
Gloves removed first, then gown. Hand hygiene is the final step.
Airborne Precautions (e.g., Tuberculosis)
1. Gloves 2. Gown 3. Hand Hygiene 4. Face Shield/Goggles 5. Respirator (N95) Mask
Hand hygiene performed before touching the face/head area to remove the respirator.
Anatomy, Physiology & Pharmacology Points
While this is a procedural topic, understanding the portals of entry for pathogens is key: mucous membranes (eyes, nose, mouth) and non-intact skin. The doffing sequence is designed to create barriers between the contaminated PPE and these vulnerable areas. For Ebola Virus Disease specifically, the virus targets multiple cell types, causing severe hemorrhagic fever with high viral loads in body fluids, making even minute contamination during doffing extremely hazardous.
Memory Tips
Mnemonic: "Get Gone First, Clean Hands Last" (for Ebola) - but modify: Get (Gown/Gloves) Gone First, Face shield, Clean Hands, Mask Last.
Think "Outside-In": The outside is dirtiest. Remove the dirtiest items (gown/gloves covering your body's outside) first, then move inward to items protecting your face.
Visualize the "Clean Hands" moment: Your hands must be clean before they go near your face to remove the mask. That's why hand hygiene is placed strategically in the sequence.
High-Frequency NCLEX Topics
PPE donning and doffing is a High Yield topic. The NCLEX-RN often tests:
The correct sequence for specific precautions (Contact, Droplet, Airborne, or combined).
Identifying the greatest risk in a scenario (e.g., "The nurse contaminates their hands while removing the gown. Which action caused this?").
The rationale behind each step (Safety and Infection Control).
Watch Out for Question Variations!
From Sequence to Error Identification: "A nurse is doffing PPE after caring for a client with Clostridioides difficile. Which action by the nurse requires immediate intervention?" (Answer might be: The nurse removes gloves and then adjusts their goggles before washing hands.)
Changing the Pathogen: The same question could be asked for Tuberculosis (Airborne) or RSV (Contact). The sequence changes slightly!
Prioritizing Actions: "After removing a contaminated gown, the nurse's hand brushes against their scrubs. What is the priority action?" (Answer: Perform hand hygiene immediately).
Nursing Clinical Practice GuideClinical Scenario: You are a nurse in the Emergency Department. A patient arrives with a recent travel history from a region with active Ebola transmission, presenting with high fever, severe headache, and vomiting. The patient is placed in a negative-pressure isolation room, and you have just completed providing care while wearing full PPE: impermeable gown, double gloves, face shield, and an N95 respirator.
Nursing Intervention Strategy:
Assessment & Planning: Before entering, ensure a trained observer is present to guide you through the doffing process. Mentally rehearse the steps. Check that all necessary supplies are in the anteroom: a designated biohazard bin for gown/gloves, a container for face shield reprocessing, a mirror, and alcohol-based hand rub.
Implementation - The Doffing Procedure:
Step into the anteroom and close the isolation room door.
Gown & Gloves: Using gloved hands, untie the gown ties. Peel the gown away from the neck and shoulders, turning it inside out as you pull it down. As you remove the gown, roll it into a bundle. Use your gloved hands to remove the outer gloves, turning them inside out, so they are contained within the rolled-up gown. Dispose of the entire bundle in the biohazard bin. (If wearing double gloves, the inner gloves remain on).
Face Shield: Lean forward. Using your (now cleaner) inner gloves, grasp the side arms or headband of the face shield and lift it away from your face. Place it in the designated receptacle for disinfection.
Hand Hygiene: Perform thorough hand hygiene with alcohol-based hand rub, covering all surfaces of your hands and wrists. This is a non-negotiable step.
Respirator Mask: Lean forward again. Using clean hands, grasp the bottom strap, then the top strap, and remove the mask without touching the front. Dispose of it in the appropriate waste container.
Final Hand Hygiene: Perform hand hygiene again immediately after removing the mask.
Evaluation & Documentation: The observer confirms all steps were completed correctly. Document the care provided and the use of appropriate isolation precautions. Monitor yourself for any signs of breach in protocol or self-contamination.
Patient Safety and Precautions:
Never Rush: Doffing must be a slow, deliberate, and mindful process. Rushing is a primary cause of self-contamination.
Use a Trained Observer: For high-risk pathogens, a second person must verbally guide each step and watch for breaks in technique.
Contingency Planning: If a breach occurs (e.g., you touch your face with a contaminated glove), you must immediately stop, alert the observer, and follow your facility's exposure management protocol, which may include decontamination and medical evaluation.
Nursing Procedure & Medication Flow
This is a core nursing procedure. Key points:
Donning Sequence (for context): Perform hand hygiene → Gown → Respirator Mask → Face Shield → Gloves.
Doffing Area Setup: The area must have clear visual cues (posters), adequate lighting, a mirror for self-checking, and well-labeled waste containers.
Waste Management: All PPE used for Ebola care is treated as regulated medical waste. It must be disposed of in leak-proof, puncture-resistant containers.
A Word from Your Senior Nurse
"Infection control is the bedrock of safe nursing practice. Mastering PPE isn't about blindly following steps; it's about understanding the 'why' behind each one. When you're in that hot, uncomfortable PPE, it's tempting to rip it off quickly. But remember, those few minutes of disciplined, careful doffing are what stand between you and a life-threatening infection. On the NCLEX, they're testing your knowledge of safety principles. In real life, you're protecting your life and the lives of your colleagues and family. Let that responsibility guide your practice. Study these sequences until they're muscle memory, because in a real emergency, that's exactly what they need to be."
Personal Protective Equipment — Specialized clothing or equipment worn by healthcare workers for protection against infectious materials. Includes gloves, gowns, masks, respirators, face shields, and goggles.
Doffing — The process of safely removing Personal Protective Equipment (PPE) in a manner that prevents self-contamination or contamination of the environment.
Ebola Virus Disease — A severe, often fatal illness in humans caused by the Ebola virus, transmitted through direct contact with blood or body fluids of an infected person. Requires strict contact and droplet precautions.
Hand Hygiene — A key measure to prevent the spread of infections. Includes washing hands with soap and water or using an alcohol-based hand rub. Critical during PPE doffing sequences.
Self-Contamination — The act of transferring infectious material from contaminated PPE or surfaces to one's own skin, mucous membranes, or clothing during the removal process. The primary risk during PPE doffing.