MP CHO -2019 (Shift-2): Which of the following diseases has symptoms like Popule rashes and any of the cough/coryza/conjunctivitis an…

MP CHO -2019 (Shift-2)

Medical Surgical Nursing

Easy

Appeared in: MP CHO -2019 (Shift-2)

Explanation

Measles, also known as Rubeola, is characterized by a classic triad of symptoms: cough, coryza (runny nose), and conjunctivitis (the '3 Cs').
A key diagnostic feature is the presence of Koplik's spots, which are small, bluish-white spots on an erythematous base, appearing on the buccal mucosa (inside of the cheek) 1-2 days before the rash.
Koplik's spots are considered pathognomonic for measles, meaning their presence is diagnostic of the disease.
The rash is maculopapular, starting on the face and hairline and spreading downwards to the rest of the body.

Option A: Smallpox rash consists of deep-seated vesicles or pustules that are all in the same stage of development and have a centrifugal distribution (more on the face and extremities), which is different from the maculopapular rash of measles.
Option C: Tetanus is a bacterial infection caused by Clostridium tetani and presents with neurological symptoms like muscle stiffness (trismus or lockjaw) and spasms. It does not cause a rash.
Option D: The rash of chickenpox (varicella) is vesicular ('dewdrop on a rose petal' appearance), intensely itchy, and pleomorphic, meaning lesions in various stages (macules, papules, vesicles, crusts) are present simultaneously. This differs from the uniform maculopapular rash of measles.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of communicable diseases based on pathognomonic signs and symptoms as background academic context rather than a clinical decision trigger.
Early identification of measles is critical for implementing airborne precautions to prevent nosocomial transmission, as it is highly contagious.
Nurses play a key role in educating families about the MMR (Measles, Mumps, Rubella) vaccination schedule to prevent outbreaks.
Administering Vitamin A to children with measles is a crucial nursing intervention as it reduces the severity of the disease and the risk of complications like blindness and mortality.

How to Approach the Question

First, analyze the symptoms provided in the question stem: papule rash, cough, coryza, conjunctivitis, and Koplik's spots.
Recognize that 'cough, coryza, and conjunctivitis' form the classic '3 Cs'.
Identify 'Koplik's spots' as the key, pathognomonic sign. A pathognomonic sign is one that is specifically characteristic of a particular disease.
Recall or deduce which of the option diseases presents with this unique combination of symptoms.
Measles (Rubeola) is the only disease that fits this clinical picture.
Eliminate the other options based on their distinct presentations: Smallpox (synchronous pustules), Tetanus (no rash, muscle spasms), and Chickenpox (asynchronous vesicles).

Concept Tested & Keywords

Concept Tested: Identification of communicable diseases based on pathognomonic signs and symptoms.
Stem keywords: Popule rashes, cough, coryza, conjunctivitis, Koplick's spot
Lead-in keywords: Which of the following
Clinical cues: Presence of Koplik's spots
Clinical cues: Combination of rash with cough, coryza, and conjunctivitis

QWhrZg9yWIGaf9TOU35PU2

E6 Medicine Harrison 22e Part 1 pp. 1682-1684, 178-180

E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart A (pp 26-201 of 604) p. 147-149