Core Nursing Explanation
Key Concept Analysis: This question tests the fundamental principle of
Transmission-Based Precautions and
Sequencing of Personal Protective Equipment (PPE) to prevent the spread of multidrug-resistant organisms (MDROs). The core theme is the
Key Point! "One Room, One Set of PPE." When caring for patients on Contact Precautions or with MDROs, PPE is considered contaminated after use. The highest priority safety measure is to prevent carrying pathogens from one patient's environment to another.
Answer Rationale: Option ③ is correct because it follows the complete and proper sequence for exiting an isolation room and preparing to enter a new one. The steps are: 1) Remove all PPE (gown and gloves) at the doorway or inside the patient's room, 2) Perform
Hand hygiene immediately after glove removal, and 3) Enter the next patient's room with clean hands and don a
fresh set of PPE. This breaks the chain of infection by ensuring no contaminated equipment is worn between rooms.
Distractor Analysis:
Watch out for confusion! Option ① is incorrect because changing gloves alone is insufficient. The gown is also contaminated and must be removed. Keeping the same gown risks transferring pathogens via the fabric.
Option ② describes a necessary step but is not the
highest priority or complete action. Hand sanitizer is used
after removing PPE, but if you enter a new room without first removing all contaminated PPE, you have already breached the protocol. The sequence is critical.
Option ④ is a dangerous practice. An N95 respirator, if worn for a specific airborne pathogen, is typically donned and doffed in a specific sequence. However, wearing the same mask throughout a shift while moving between different isolation rooms risks contaminating the outside of the mask and is not standard practice for contact precautions. For MDROs spread by contact, a surgical mask is often sufficient unless there is also an airborne component; the key error is reusing any PPE between patients.
Related Concepts: This integrates knowledge of
Standard Precautions (applied to all patients),
Contact Precautions (for MDROs like MRSA, VRE, C. diff), and the specific
Doffing (Removal) Sequence for PPE to prevent self-contamination (e.g., gloves first, then gown, then hand hygiene, then mask/eye protection if worn).
Concept Summary
•
Chain of Infection: Breaking the mode of transmission (contact) is the goal.
•
PPE for Contact Precautions: Gown and gloves. Mask/eye protection if splashes are anticipated.
•
Core Principle: PPE is patient-specific. It is donned upon room entry and doffed upon room exit.
•
Hand Hygiene: The single most important infection control measure. Must be performed immediately after removing gloves and before touching any clean surface.
Side-by-Side Comparison!
| Action | Correct Practice | Incorrect Practice & Risk |
|---|
| Transitioning between isolation rooms | Remove all PPE, perform hand hygiene in the room/anteroom, then enter next room and don clean PPE. | Changing only gloves or keeping the same gown. Risk: Cross-contamination via contaminated gown. |
| Hand Hygiene Timing | AFTER removing gloves, BEFORE touching door handle or clean surfaces. | Using hand sanitizer over contaminated gloves or delaying hygiene until later. Risk: Contaminating the environment. |
| N95 Respirator Use | Used for airborne precautions (e.g., TB, measles). Donned before entry, carefully removed after exit to avoid self-contamination. Reused per protocol only if not contaminated. | Wearing the same N95 between different patient rooms for contact precautions. Risk: Unnecessary and risks mask contamination. |
Anatomy, Physiology & Pharmacology Points
• While this topic is less about anatomy and more about procedure, understanding
Modes of Transmission is key:
Contact (direct/indirect),
Droplet,
Airborne. MDROs are primarily spread by
contact (hands, equipment, surfaces).
• For
Clostridioides difficile (C. diff), a spore-forming bacterium, hand hygiene with
soap and water is required because alcohol-based sanitizers do not kill spores.
Memory Tips
• Mnemonic for PPE Doffing Sequence: "Gloves, Gown, Hands, Mask" (GGHM) or remember: "The dirtiest things (gloves) come off first, clean your hands, then handle your face (mask)."
• Think: "One Patient, One Gown". The gown is like a patient's jacket—you wouldn't wear one patient's jacket to see another.
High-Frequency NCLEX Topics
Infection control is a High Yield NCLEX category. Expect questions on:
1. Priority Action: What is the first or most important step? (Hand hygiene is almost always a component).
2. Sequencing: Proper order for donning/doffing PPE.
3. Precautions Specifics: Matching the type of precaution (Contact, Droplet, Airborne) to the disease and required PPE.
4. Patient Education: Teaching visitors or family about isolation precautions.
Watch Out for Question Variations!
• Variation 1: "A nurse is preparing to enter the room of a patient with tuberculosis. Which action should the nurse take first?" (Answer: Don an N95 respirator before entering the room—Airborne Precautions).
• Variation 2: "A nurse has just completed a dressing change for a patient with MRSA. Which action should the nurse take immediately after removing gloves?" (Answer: Perform hand hygiene).
• Variation 3: "Which patient should the nurse place in a private room first?" (Tests prioritization of airborne over contact precautions).