A nurse is preparing to change a sterile dressing on a posto… | 마이메르시 MyMerci
Fundamentals
문제

A nurse is preparing to change a sterile dressing on a postoperative abdominal wound for a 65-year-old patient with diabetes. During the procedure, the nurse accidentally touches the sterile field with a non-sterile glove. What is the most appropriate immediate action?

해설
When sterile technique is compromised, the entire sterile field is contaminated and must be discarded to prevent infection. Patient safety requires restarting with new sterile supplies, while other options risk introducing pathogens.

심화 해설

Core Nursing Explanation Key Concept Analysis: This question tests the fundamental principle of sterile technique and the nurse's immediate response to a break in asepsis. The core principle is that sterility is absolute and cannot be partial. Once a sterile field or object is touched by a non-sterile item, it is considered contaminated. This is especially critical for a postoperative patient with diabetes, who is at higher risk for surgical site infection (SSI) due to impaired wound healing and immune function.

Answer Rationale: Key Point! The only correct action is to stop, discard all contaminated supplies, and restart with new sterile equipment. This action upholds the principle of surgical asepsis, which aims to eliminate all microorganisms from an object or area. Continuing in any way with a known contaminated field violates this principle and directly compromises patient safety.

Distractor Analysis:
Watch out for confusion! Option ② suggests avoiding the contaminated area. This is incorrect because contamination compromises the entire sterile field. Microorganisms are not visible and can spread via air currents or moisture, making it impossible to isolate a "contaminated area."
• Option ③ is dangerous. Cleaning with alcohol does not re-sterilize the field. Alcohol is a disinfectant, not a sterilant, and its use on a sterile field intended for a wound is inappropriate and would further contaminate the area.
• Option ④ prioritizes task completion over patient safety. Documenting an error is important, but it must follow the corrective action of ensuring a sterile procedure. Completing the dressing with known contamination is a negligent act.

Related Concepts: This scenario integrates knowledge of infection control, patient safety, and the nursing process. The correct action reflects the assessment (recognizing the break) and implementation (correcting the error) phases. It also touches on professional accountability and ethical practice.
Concept Summary
ConceptDefinition & Application
Surgical Asepsis (Sterile Technique)Practices that keep an object or area free of all microorganisms. Used for procedures involving sterile body cavities (e.g., surgery, dressing changes, catheter insertion).
Medical Asepsis (Clean Technique)Practices that reduce the number and spread of pathogens (e.g., hand hygiene, using clean gloves). Not sterile.
Principles of Sterility1. A sterile object remains sterile only when touched by another sterile object.
2. If sterility is in doubt, consider it contaminated.
3. Sterile fields must be kept in view and above waist level.
4. The edges (1-inch border) of a sterile field are considered contaminated.
Surgical Site Infection (SSI) RiskPatients with diabetes, advanced age, or immunosuppression are at higher risk. Strict sterile technique is non-negotiable for their care.

Side-by-Side Comparison!
Asepsis TypeGoalExample ProceduresKey Rule if Contaminated
Surgical Asepsis (Sterile)Eliminate ALL microorganismsDressing a surgical wound, inserting a urinary catheter, central line careSTOP and restart completely with new supplies.
Medical Asepsis (Clean)Reduce number of pathogensChanging a soiled bed, administering oral meds, routine vital signsPerform hand hygiene, replace the specific contaminated item if possible, and continue.

Anatomy, Physiology & Pharmacology PointsPhysiology (Diabetes): Hyperglycemia impairs neutrophil function and collagen synthesis, delaying wound healing and increasing infection risk. This makes sterile technique even more critical.
Anatomy (Abdominal Wound): Postoperative abdominal wounds are considered "clean-contaminated" or "contaminated" depending on the surgery, making them highly susceptible to infection if sterility is breached.
Memory TipsMnemonic: "Sterile is Sacred, Single touch Spoils it."
Visual Association: Imagine a sterile field as a pristine, invisible bubble. Poking it with a dirty finger pops the entire bubble—it's gone.
High-Frequency NCLEX Topics Principles of infection control, especially sterile vs. clean technique, are extremely high-yield. The NCLEX loves to test your ability to prioritize patient safety and apply fundamental principles correctly in a scenario. Knowing the uncompromising rule for a broken sterile field is essential.
Watch Out for Question Variations! • Instead of a glove, the question might involve a sterile item falling below waist level, or the nurse turning their back on the field.
• The question could shift to priority-setting: "What should the nurse do first?" The answer is still to stop the procedure to prevent harm.
• It could be framed as a patient education topic: "A nurse is teaching a new graduate about sterile technique. Which statement by the graduate indicates understanding?" The correct statement would be about starting over if contamination occurs.

임상 시나리오

Nursing Clinical Practice Guide Clinical Scenario: You are in Ms. Chen's room. She is 3 days post-op from a colectomy. Her blood glucose has been running slightly high. You have gathered your sterile supplies on the bedside table, donned sterile gloves, and opened the sterile dressing tray. As you reach for the gauze, your elbow brushes against your unsterile scrub top.

Nursing Intervention Strategy:
1. Assessment & Immediate Action: Verbally acknowledge the error to the patient ("I'm sorry, Ms. Chen, I need to get a new dressing kit to keep everything perfectly clean for you").
2. Safe Disposal: Carefully gather the contaminated tray and supplies, keeping them away from the patient, and dispose of them in the appropriate biohazard waste.
3. Restart: Perform hand hygiene again. Open a completely new sterile dressing kit and all ancillary supplies (saline, gauze, tape). Re-establish the sterile field.
4. Proceed & Evaluate: Complete the dressing change using strict technique. Afterward, assess the wound for any signs of infection and document the procedure, including the fact that the initial set-up was contaminated and replaced, and the current wound appearance.

Patient Safety and Precautions:
Never try to "save" supplies or time at the expense of sterility. The cost of an infection far outweighs the cost of a dressing kit.
• Maintain a sterile conscience. This is the inner awareness of what is sterile and what is not, and the integrity to act when sterility is broken, even if no one is watching.
• For immunocompromised patients (like those with diabetes), consider setting up your sterile field in a location with minimal traffic to reduce air contamination risk.
Nursing Procedure & Medication Flow Sterile Dressing Change - Critical Steps:
1. Preparation: Gather all supplies. Perform hand hygiene. Explain procedure to patient. Provide privacy.
2. Removal of Old Dressing: Don clean gloves. Remove tape gently, discard old dressing in biohazard bag. Remove clean gloves, perform hand hygiene.
3. Establishing Sterile Field: Open sterile kit onto clean, dry surface. Don sterile gloves. Organize supplies on field.
4. Cleaning & New Dressing: Clean wound from center outward using a new swab for each stroke. Apply new sterile dressing.
5. Post-Procedure: Secure dressing. Dispose of waste. Perform hand hygiene. Document.
A Word from Your Senior Nurse "In the real world, breaks in sterility happen—we're human. The mark of a great nurse isn't perfection, but integrity. The ability to stop, admit the mistake to yourself (and sometimes to the patient), and do it right is what builds trust and keeps patients safe. On the NCLEX and in practice, your sterile conscience is your most important tool. When in doubt, throw it out!"

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