# A 2-year-old toddler is brought to the pediatric clinic by their parent who reports the appearance of crusty, honey-colored lesions around the child's mouth and nose that began 3 days ago. Which assessment finding would be most characteristic of impetigo? > source: MyMerci (mymerci.kr) > url: https://mymerci.kr/pages/nclex_q.php?qn_id=542330 > language: ko > subject: Child Health ## 문제 A 2-year-old toddler is brought to the pediatric clinic by their parent who reports the appearance of crusty, honey-colored lesions around the child's mouth and nose that began 3 days ago. Which assessment finding would be most characteristic of impetigo? ## 보기 1. Vesicles that rupture and form shallow, moist ulcers 2. Honey-colored crusts that are easily removed, revealing a red, weeping base **✔ 정답** 3. Raised, scaly patches with well-defined, distinct borders 4. Deep, painful nodules with purulent, draining exudate **정답: 2** ## 해설 Honey-colored crusts that reveal a red, weeping base when removed are pathognomonic for impetigo, unlike vesicles (herpes), scaly patches (psoriasis), or deep nodules (abscess). ## 심화 해설 Understanding the Question This question asks you to identify the most characteristic assessment finding for impetigo in a toddler. Impetigo is a highly contagious, superficial bacterial skin infection most commonly caused by Staphylococcus aureus or Group A beta-hemolytic Streptococcus (GABHS). The key to answering correctly is recognizing the classic progression and appearance of the lesions, which distinguishes it from other skin conditions like herpes simplex, tinea corporis, or furuncles. Analysis of the Correct Answer (Option 2) Honey-colored crusts that are easily removed, revealing a red, weeping base. This is the pathognomonic presentation of nonbullous impetigo, the most common form of the infection. The pathophysiology begins with a minor break in the skin, such as a scratch or insect bite, which allows bacteria to enter the superficial epidermis. The infection starts as small erythematous macules that rapidly evolve into vesicles or pustules. These fragile lesions rupture easily, and the serous exudate dries to form the hallmark thick, adherent, honey-yellow crusts. When these crusts are removed, a smooth, red, moist (weeping) base is exposed, which is exactly as described in this option. This clinical picture is so distinctive that a diagnosis can often be made on inspection alone, a point emphasized in consensus guidelines for effective impetigo management . Analysis of Incorrect Options Option 1: Vesicles that rupture and form shallow, moist ulcers. While impetigo does begin with vesicles, the description of them rupturing to form shallow, moist ulcers is more characteristic of a herpes simplex virus (HSV) infection, such as a cold sore. Herpetic lesions are typically painful, appear on an erythematous base, and do not form the thick, honey-colored crusts that are the hallmark of impetigo. The distinction between a vesiculoulcerative lesion and a crusted, weeping erosion is a critical assessment point for the NCLEX-RN. Option 3: Raised, scaly patches with well-defined, distinct borders. This description is classic for a superficial fungal infection, such as tinea corporis (ringworm). The lesion is characterized by an annular, erythematous, scaly plaque with a raised border and central clearing. The absence of crusting, weeping, or a honey color helps differentiate it from impetigo. The well-defined border is a key feature of dermatophyte infections, not bacterial ones like impetigo. Option 4: Deep, painful nodules with purulent, draining exudate. This finding describes a furuncle (boil) or a carbuncle, which are deep infections of the hair follicle and surrounding dermal tissue. Unlike the superficial nature of impetigo, these are firm, tender, erythematous nodules that extend into the dermis and subcutaneous tissue. They are painful and drain purulent material, not the serous, honey-colored fluid seen in impetigo. This option points to a deeper, more severe infection, which is a key differentiating factor for the NCLEX-RN. Clinical Application and NCLEX-RN Focus For the NCLEX-RN, the assessment of integumentary disorders requires you to link specific lesion descriptions to their underlying pathophysiology. Impetigo is a superficial infection, so the lesion remains in the epidermis and does not create deep nodules or ulcers. The honey-colored crust is the direct result of the serous exudate drying on the skin's surface. When teaching parents, you would emphasize that these crusts are infectious and should not be picked at, and that gentle removal with warm soapy water is part of the care before applying a prescribed topical antibiotic, a cornerstone of therapy highlighted in current treatment consensus reports . The highly contagious nature of the exudate is why contact precautions are essential in the clinical setting. ## 임상 시나리오 Clinical Assessment of Suspected Impetigo When evaluating a toddler with crusty lesions around the mouth and nose, prioritize inspection for the pathognomonic **honey-colored crusts** of nonbullous impetigo. Gently remove a crust to visualize the characteristic **red, moist, weeping base**. This finding alone is often sufficient for a clinical diagnosis, differentiating it from herpetic ulcers, fungal patches, or deeper abscesses. Always assess for periorbital involvement, which requires urgent ophthalmology referral to prevent post-streptococcal complications. Key Nursing Actions - **Infection Control:** Implement contact precautions immediately. Educate the parent on strict hand hygiene, keeping the child's nails short, and avoiding shared towels or linens to prevent autoinoculation and transmission to household contacts. - **Lesion Care:** Instruct the parent to gently soak and remove crusts with warm, soapy water before applying topical antibiotic ointment (e.g., mupirocin) as prescribed. Lesions should be covered with a loose bandage or clothing. - **Treatment Adherence:** Reinforce the need to complete the full course of topical or oral antibiotics, even if lesions resolve quickly. Oral antibiotics are indicated for extensive or multiple lesions. - **Return Precautions:** Advise the parent to return to the clinic or seek emergency care if the child develops fever, facial swelling, dark or cola-colored urine (sign of acute post-streptococcal glomerulonephritis), or if lesions spread despite treatment. Differential Diagnosis Considerations While honey-colored crusts are classic, be aware of other common pediatric skin findings: - **Herpes Simplex Virus (HSV):** Presents with grouped, painful vesicles on an erythematous base that rupture into shallow, punched-out ulcers. No thick honey crusts. - **Tinea Corporis (Ringworm):** Features annular, raised, scaly patches with well-defined borders and central clearing. The surface is dry and scaly, not weeping. - **Furuncle/Carbuncle:** A deep, tender, erythematous nodule centered on a hair follicle, which becomes fluctuant and drains purulent material. The infection is dermal, not superficial. ## 핵심 개념 - **Impetigo** — A highly contagious, superficial bacterial skin infection commonly caused by Staphylococcus aureus or Group A Streptococcus, characterized by honey-colored crusts. - **Nonbullous Impetigo** — The most common form of impetigo, presenting with vesicles or pustules that rupture and form thick, adherent, honey-yellow crusts on a red, weeping base. - **Pathognomonic** — A sign or symptom that is so characteristic of a disease that it can be used to make a diagnosis. - **Tinea Corporis** — A superficial fungal infection of the skin (ringworm) presenting as raised, scaly, annular patches with well-defined borders and central clearing. - **Furuncle** — A deep, painful, pus-filled nodule (boil) resulting from a bacterial infection of a hair follicle, extending into the dermis and subcutaneous tissue. ## 같은 주제 문제 - [A 6-year-old child is brought to the pediatric clinic with skin lesions on the face. 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