A nurse is preparing to enter the isolation unit for a patient with suspected Ebola virus disease. Which perso…

Question

A nurse is preparing to enter the isolation unit for a patient with suspected Ebola virus disease. Which personal protective equipment (PPE) sequence demonstrates the correct donning procedure for enhanced contact precautions?

Accepted Answer

보기 1: Hand hygiene → gown → mask/respirator → eye protection → gloves → boot covers → perform hand hygiene

The correct donning sequence (hand hygiene → gown → mask/respirator → eye protection → gloves → boot covers → hand hygiene) follows CDC/WHO guidelines to build multiple protective barriers. Other options disrupt this systematic approach, increasing contamination risk.

Answer

보기 2: Gown → hand hygiene → mask/respirator → gloves → eye protection → boot covers → perform hand hygiene

Answer

보기 3: Hand hygiene → mask/respirator → gown → gloves → eye protection → boot covers → perform hand hygiene

Answer

보기 4: Hand hygiene → eye protection → gown → mask/respirator → gloves → boot covers → perform hand hygiene

Concept	Description	Application
Enhanced Contact Precautions	Used for pathogens spread by direct/indirect contact that pose a high risk of severe illness (e.g., Ebola, C. difficile, MDROs). Involves gown and gloves, plus face/eye protection if splashes are possible.	Ebola Virus Disease requires full PPE: impermeable gown, respirator (N95 or PAPR), face shield/goggles, double gloves, boot covers.
PPE Donning Principle	"Clean to Dirty": Start with hand hygiene. Protect torso, then airway/eyes, then seal with gloves. Goal is to avoid contaminating clean PPE during donning.	Sequence: 1. Hand Hygiene 2. Gown 3. Mask/Respirator 4. Eye Protection 5. Gloves 6. (Boot Covers) 7. Final Hand Hygiene.
PPE Doffing Principle	"Dirty to Clean": Remove most contaminated items first in a controlled manner to prevent self-inoculation. Assume outside of all PPE is contaminated.	Sequence: 1. Gloves 2. Hand Hygiene 3. Eye Protection 4. Gown 5. Hand Hygiene 6. Mask/Respirator 7. Final Hand Hygiene.

Precaution Type	Key PPE Required	Donning Sequence Focus	Example Pathogens
Standard Precautions	Gloves (for anticipated contact with blood/body fluids). Gown, mask, eye protection based on task.	Task-based. Hand hygiene is always first and last.	All patients. Basis for all care.
Contact Precautions	Gown and Gloves upon room entry.	Hand hygiene → Gown → Gloves. Face protection added if splash risk.	MRSA, VRE, RSV, C. difficile.
Droplet Precautions	Surgical Mask (for HCW and patient during transport). Gown/gloves per contact precautions.	Mask is donned before entering room. Hand hygiene first.	Influenza, Pertussis, Meningitis, COVID-19 (per some guidelines).
Airborne Precautions	Fit-tested N95 Respirator or PAPR. Gown/gloves as needed.	Respirator must be donned before entering and sealed-checked. Hand hygiene first.	Measles, Tuberculosis (TB), Varicella.
Enhanced Precautions (Ebola)	Full ensemble: Impermeable gown, N95/PAPR, face shield, double gloves, boot/leg covers.	Strict, multi-step sequence with a trained observer. Final seal check is critical.	Ebola Virus Disease, Marburg, other VHFs.

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A nurse is preparing to enter the isolation unit for a patient with suspected Ebola virus disease. Which personal protective equipment (PPE) sequence demonstrates the correct donning procedure for enhanced contact precautions?

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