Identify the condition in the following image.

NORCERT 8 Mains-2025

Child Health Nursing (Pediatrics)

Easy

Appeared in: NORCERT 8 Mains-2025

Explanation

The image displays the classic signs of Harlequin color change: a sharp, longitudinal line dividing the body into a red half and a pale half.
This phenomenon is caused by a temporary imbalance in the autonomic regulation of cutaneous blood vessel tone in newborns.
It is a benign, transient condition that typically occurs between the 2nd and 5th day of life and resolves spontaneously without any need for treatment.
The color change is often influenced by the infant's position, with the dependent side becoming red.

Option A: Thalidomide exposure causes severe congenital limb deformities (phocomelia), not the transient skin color change seen in the image.
Option C: A fixed drug eruption is a localized, recurrent allergic skin reaction to a drug, presenting as a well-demarcated, round or oval, erythematous patch. It does not bisect the entire body.
Option D: Erythema Toxicum Neonatorum is a common, benign rash appearing as blotchy red spots with central papules or pustules, often described as 'flea-bitten'. It lacks the sharp midline demarcation of Harlequin change.

Visual 1: Diagram - A flowchart illustrating the pathophysiology of Harlequin color change, showing the role of the immature autonomic nervous system and its effect on blood vessel dilation and constriction.
Visual 2: Clinical Photo Comparison - A side-by-side comparison of Harlequin color change, Erythema Toxicum Neonatorum, and Cutis Marmorata to highlight the distinct visual differences for easier identification.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Recognition of common neonatal dermatological conditions as background academic context rather than a clinical decision trigger.
A key nursing role is to accurately identify benign neonatal skin conditions like Harlequin changes to provide reassurance to anxious parents and prevent unnecessary investigations or treatments.
Nurses should document the event, including its duration and the infant's position, but understand that it is a physiological, not pathological, finding.
What if? - If the color change was persistent, did not resolve with a change in position, and was associated with other signs like limb asymmetry or ulceration, the nurse should consider a more serious vascular anomaly like Cutis Marmorata Telangiectatica Congenita and escalate for further evaluation.

How to Approach the Question

First, carefully analyze the image provided. Note the most prominent and unusual feature: the sharp, vertical line dividing the baby's body into two different colors.
Observe the characteristics of the two sides: one is distinctly red/pink (erythematous), and the other is pale.
Consider the term 'Harlequin,' which often refers to a character in traditional comedy with a multi-colored, patterned costume. This can be a mnemonic for the condition's appearance.
Evaluate the given options based on your visual analysis. Systematically rule out options that describe different pathologies (e.g., limb deformities, localized rashes, or pustular eruptions).
Select the option that perfectly matches the unique visual presentation of a body split into two distinct colors along the midline.

Concept Tested & Keywords

Concept Tested: Recognition of common neonatal dermatological conditions
Stem keywords: Identify the condition, image
Lead-in keywords: BEST, MOST RELEVANT CLUE
Clinical cues: Image shows a newborn with a distinct midline demarcation of skin color

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