A nurse assesses a toddler who presents with a high fever for five days, bilateral conjunctivitis without exudate, a bright red "strawberry" tongue, and a diffuse maculopapular rash. The nurse also notes erythema and swelling of the hands and feet. These findings are most characteristic of which condition?

1. A

   Measles (Rubeola)

2. B

   Scarlet Fever

3. C

   Kawasaki Disease

4. D

   Hand, Foot, and Mouth Disease

Appeared in: NORCET 9 Prelims-2025

Explanation

Listen in Hindi

• The patient's presentation fulfills the classic diagnostic criteria for Kawasaki Disease, which requires a fever lasting at least 5 days.
• The patient exhibits four of the five principal clinical signs: bilateral non-purulent conjunctivitis, oral mucosal changes ('strawberry' tongue), a diffuse rash, and erythema/swelling of the hands and feet.
• This specific constellation of symptoms is the hallmark of the acute phase of Kawasaki Disease, a medium-vessel vasculitis.
• Early recognition is critical to prevent cardiac complications, primarily coronary artery aneurysms.

Why Other Options Were Wrong

• Option A: Measles is incorrect. While it presents with fever and a maculopapular rash, it is also characterized by the '3 Cs' (cough, coryza, conjunctivitis) and pathognomonic Koplik's spots on the buccal mucosa, which are not mentioned. It does not typically cause a strawberry tongue or swelling of the hands and feet.
• Option B: Scarlet Fever is incorrect. Although it can cause a strawberry tongue and a rash, the rash is typically described as 'sandpaper-like' and it is associated with a streptococcal pharyngitis. It does not typically cause non-exudative conjunctivitis or the prominent swelling of hands and feet seen in Kawasaki Disease.
• Option D: Hand, Foot, and Mouth Disease is incorrect. The characteristic rash of this condition is vesicular (blisters), not maculopapular, and is located on the palms, soles, and inside the mouth. It does not cause the high, prolonged fever, non-purulent conjunctivitis, or diffuse body rash described.

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Differential diagnosis of pediatric febrile exanthems, specifically Kawasaki Disease to guide bedside assessment, documentation, and the next nursing action.
• A nurse's ability to recognize the symptom cluster for Kawasaki Disease is critical for patient safety. Delayed diagnosis and treatment significantly increase the risk of coronary artery aneurysms and long-term cardiac complications.
• Key nursing interventions include meticulous cardiac monitoring (for signs of myocarditis or heart failure), administering IVIG as prescribed while monitoring for infusion reactions and fluid overload, providing comfort measures for fever and joint pain, and offering oral care for cracked lips.
• What if? If the child's conjunctivitis had a thick, purulent (pus-like) exudate, the diagnosis of Kawasaki Disease would be less likely, and a bacterial infection would be higher on the differential diagnosis.

How to Approach the Question

• First, identify this as a clinical scenario question that requires recognizing a specific disease pattern.
• Break down the patient's presentation into a list of key signs and symptoms: 1) Fever > 5 days, 2) Non-pus red eyes, 3) Red, bumpy tongue, 4) Body rash, 5) Swollen/red hands and feet.
• Systematically evaluate each option. Ask yourself, 'Does Measles cause all these symptoms? Does Scarlet Fever?'
• Recall or deduce the classic presentation of each disease. Measles has Koplik's spots. Scarlet Fever has a sandpaper rash. Hand, Foot, and Mouth has blisters.
• Recognize that the entire cluster of symptoms presented in the question perfectly matches the textbook diagnostic criteria for Kawasaki Disease.
• Select the option that accounts for all the major findings described in the vignette.

Concept Tested & Keywords

• Concept Tested: Differential diagnosis of pediatric febrile exanthems, specifically Kawasaki Disease.
• Stem keywords: toddler, high fever, five days, bilateral conjunctivitis, strawberry tongue, maculopapular rash, erythema, swelling of hands and feet
• Lead-in keywords: most characteristic of
• Clinical cues: Fever duration of 5 days is a key diagnostic criterion for Kawasaki Disease.
• Clinical cues: Bilateral conjunctivitis without exudate helps differentiate it from bacterial or some viral infections.

Question ID

Q8stkMaFh4wCe8Ed3jWGAZ

Copy ID

Reference Book

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 pp. 1545-1547, 1543-1545

E6 Medicine Harrison 22e Part 1 p. 187-189