Core Nursing Explanation
This question tests the priority nursing intervention for a child with
Impetigo, a common and highly contagious bacterial skin infection. The core principle is
Infection Control. In nursing, the priority is always safety, and in this case, the safety of the patient and others from the spread of infection is paramount.
Key Concept Analysis
Impetigo is caused primarily by
Staphylococcus aureus or
Streptococcus pyogenes. It presents with honey-colored crusts or bullae. The pathophysiology involves bacteria entering through breaks in the skin, multiplying, and causing localized infection. The exudate from the lesions is teeming with bacteria, making it extremely contagious through direct contact or via contaminated items (fomites).
Answer Rationale
Key Point! The priority nursing intervention is
Implement strict isolation precautions and teach proper hand hygiene. This directly addresses the greatest risk: transmission of infection to other children, family members, or healthcare workers. Strict contact precautions (a component of standard precautions) are required until 24-48 hours after antibiotic therapy is initiated. Hand hygiene is the single most effective measure to prevent the spread of infection.
Distractor Analysis
Watch out for confusion! While some interventions might be part of care, they are not the priority and some are harmful.
①
Apply warm compresses: This might be used to gently soften crusts
after initiating treatment, but it is not the priority. Overuse can macerate the skin, creating a better environment for bacteria.
②
Encourage the child to scratch gently: This is absolutely contraindicated. Scratching disrupts the skin barrier, spreads bacteria to other body parts (auto-inoculation), and to the environment.
③
Keep the child's fingernails long: This is the opposite of correct care. Fingernails should be kept
short and clean to minimize harboring bacteria and to reduce trauma from scratching.
Related Concepts
This question integrates
Chain of Infection concepts. The nurse's role is to break the chain by isolating the reservoir (the child's lesions) and interrupting the mode of transmission (contact). Patient and family education on not sharing towels, bedding, and toys is also crucial.
Concept Summary
•
Disease: Impetigo – Contagious superficial skin infection.
•
Pathogens:
Staph. aureus,
Strep. pyogenes.
•
Hallmark Sign: Honey-colored crusts.
•
Priority Nursing Focus: Infection control (Contact Precautions).
•
Treatment: Topical (e.g., mupirocin) or oral antibiotics.
•
Key Patient Education: Hand hygiene, no scratching, no sharing personal items.
Side-by-Side Comparison!
| Skin Condition | Contagious? | Key Feature | Priority Nursing Intervention |
|---|
| Impetigo | Highly Contagious | Honey-colored crusts | Contact Precautions & Hand Hygiene |
| Atopic Dermatitis (Eczema) | Not Contagious | Dry, itchy, inflamed skin | Skin Hydration & Itch Control |
| Cellulitis | Not Typically Contagious* | Red, warm, swollen, painful area | Administer Antibiotics & Monitor for Sepsis |
*Cellulitis is an infection of deeper skin layers, not usually spread by casual contact like impetigo.
Anatomy, Physiology & Pharmacology Points
•
Skin Barrier: The stratum corneum is the first line of defense. Impetigo breaches this barrier.
•
Bacterial Transmission: Direct contact (skin-to-skin) or indirect contact (via fomites).
•
Pharmacology: First-line treatment is often topical Mupirocin 2% ointment. For widespread cases, oral antibiotics like cephalexin or dicloxacillin are used.
Memory Tips
• H.I.P. for Impetigo Priority: Hand hygiene, Isolation (Contact Precautions), Prevent scratching.
• Think: "Honey is sticky" – Honey-colored crusts mean the infection STICKs to others easily (contagious).
High-Frequency NCLEX Topics
NCLEX loves to test priority-setting and infection control for contagious conditions. Impetigo is a classic pediatric example. Remember: Safety and prevention of harm (spread of infection) come before comfort measures.
Watch Out for Question Variations!
• Instead of "priority intervention," the question could ask: "Which statement by the parent indicates understanding of teaching?" Correct answer would relate to hand hygiene or not sharing towels.
• It could be combined with medication administration: "The nurse is applying mupirocin ointment. What action is essential?" Answer: Wear gloves.
• It could shift to complications: "The nurse should monitor for which potential complication of untreated impetigo?" Answer: Post-streptococcal glomerulonephritis (PSGN).