In which disease are Koplik spots found?

Appeared in: MP CHO -2019 (Shift-1)

Explanation

Koplik spots are a pathognomonic sign of measles, meaning their presence is diagnostic for the disease.
These spots are described as small, bluish-white lesions surrounded by a red halo.
They appear on the buccal mucosa (inner lining of the cheeks), typically opposite the lower molars.
Koplik spots manifest during the prodromal phase of measles, about 1-4 days before the onset of the characteristic skin rash.

Why Other Options Were Wrong

Option B: Mumps is characterized by parotitis, which is the painful swelling of the salivary glands, particularly the parotid glands. It does not cause Koplik spots.
Option C: Rubella, or German measles, is associated with a fine, pink maculopapular rash and posterior auricular lymphadenopathy. While it can have oral signs (Forchheimer spots on the soft palate), it does not cause Koplik spots.
Option D: Polio (poliomyelitis) is a viral infection that affects the nervous system and can cause muscle weakness and paralysis. It has no association with oral spots or a skin rash like measles.

Related Visual

Clinical Relevance

Nursing practice connection: Knowing Pathognomonic signs of infectious diseases helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Recognizing Koplik spots is crucial for nurses as it allows for early diagnosis of measles, enabling prompt implementation of airborne precautions to prevent transmission.
Early identification helps in initiating supportive care, including hydration, fever management, and administration of Vitamin A as recommended by WHO, which can reduce morbidity and mortality.
A key nursing role is to educate parents about the importance of the MMR (Measles, Mumps, Rubella) vaccine for prevention.

How to Approach the Question

First, identify the key term in the question, which is 'Koplik spots'.
This is a factual recall question that tests your knowledge of pathognomonic (uniquely characteristic) signs of diseases.
Access your knowledge base on common infectious childhood diseases and their specific signs.
Evaluate each option: Measles is classically associated with Koplik spots. Mumps is associated with parotitis. Rubella has a different type of rash and lymphadenopathy. Polio affects the nervous system.
Select the option that directly corresponds to the key term. The link between Koplik spots and measles is a classic and frequently tested concept.

Concept Tested & Keywords

Concept Tested: Pathognomonic signs of infectious diseases
Stem keywords: Koplik spots
Lead-in keywords: found in
Negative lead-in flag: false

Question ID

QTRYFGdqorrjJrz9N-VgR5

Reference Book

E6 Medicine Harrison 22e Part 1 p. 1682-1684

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1965-1967

E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 2036-2038

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