Severe jaundice in a young infant is assessed by checking if he has?

Appeared in: Hariyana-CHO-2021

Explanation

Jaundice in newborns progresses in a head-to-toe (cephalocaudal) direction as bilirubin levels rise.
The appearance of yellow discoloration on the palms and soles corresponds to Kramer Zone 5.
This zone indicates the highest level of serum bilirubin (approximately 13-15 mg/dL or higher) and is a critical sign of severe jaundice requiring immediate medical attention to prevent complications like kernicterus.

Option A: A yellowish chest corresponds to Kramer Zone 2, which indicates only mild to moderate jaundice, not severe.
Option B: Yellow discoloration of the chest and abdomen involves Kramer Zones 2 and 3. This signifies moderate jaundice, which is less severe than jaundice reaching the palms and soles.
Option D: This option is incorrect because there is a specific, well-established clinical sign for assessing severe jaundice among the choices.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Clinical assessment of neonatal jaundice severity using Kramer's zones as background academic context rather than a clinical decision trigger.
Nurses must perform routine jaundice checks every 12 hours in newborns, preferably in natural daylight. Assessment involves pressing a finger on the skin (blanching) to observe the underlying color.
The identification of jaundice on palms and soles (Zone 5) is a critical finding that necessitates immediate reporting to the physician and preparation for interventions like phototherapy or exchange transfusion.
Early detection and management are crucial to prevent acute bilirubin encephalopathy and its chronic, irreversible form, kernicterus.

How to Approach the Question

First, identify the core of the question: it asks for the clinical sign of severe jaundice in an infant.
Recall the principle of cephalocaudal (head-to-toe) progression of neonatal jaundice. The further down the body the jaundice appears, the higher the bilirubin level.
Mentally review or visualize Kramer's zones of jaundice. Zone 1 is the head (mildest), and the zones progress down the body to the extremities.
Recognize that the final zone, Zone 5, includes the palms and soles and represents the most severe level of clinically visible jaundice.
Evaluate the given options against this principle: 'Yellowish chest' (Zone 2) and 'Yellowish chest and abdomen' (Zones 2-3) are intermediate stages.
Conclude that 'Yellowish soles and palms' is the correct indicator for severe jaundice, as it corresponds to the highest zone of progression.

Concept Tested & Keywords

Concept Tested: Clinical assessment of neonatal jaundice severity using Kramer's zones.
Stem keywords: Severe jaundice, young infant, assessed
Lead-in keywords: checking if he has
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.

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E6 Ghai Essential Pediatrics(pp 26-904 of 913) pp. 168-170, 169-171

Practise the full Hariyana-CHO-2021

Attempt every question from this paper in a timed mock, then review the full solution for each one.