A 19 months baby visited to paediatric clinic with his parents. On the examination which clinical findings is… - NORCET 3 - 2022 (Shift-2)

NORCET 3 - 2022 (Shift-2)

Child Health Nursing (Pediatrics)

Easy

Appeared in: NORCET 3 - 2022 (Shift-2)

Explanation

The posterior fontanel, being triangular, typically closes by 6-8 weeks (around 2-3 months) of age.
The anterior fontanel, which is diamond-shaped, normally closes between 12 to 18 months of age, although it can remain open up to 24 months in some healthy children.
At 19 months, it is a normal and expected finding for both the anterior and posterior fontanels to be closed.
This indicates that the skull bones have fused appropriately, which is a key part of normal infant development.

Option A: This is incorrect because the posterior fontanel should be closed by 2-3 months of age. It would be highly abnormal for it to be open at 19 months.
Option C: This is incorrect. The posterior fontanel should have closed long ago. While the anterior fontanel can sometimes remain open past 18 months, having both open is not the expected normal finding.
Option D: This is incorrect because a sunken fontanel is a clinical sign of dehydration, which is an abnormal condition requiring medical attention.

Visual 1: Diagram - An illustration of an infant's skull showing the location and shape of the anterior (diamond) and posterior (triangular) fontanels. This helps learners visualize the anatomical landmarks.
Visual 2: Chart - A timeline chart illustrating the normal closure periods for both the anterior and posterior fontanels, highlighting the 12-18 month window for the anterior one.

Clinical Relevance

Nursing practice connection: Knowing Normal growth and development milestones in infants, specifically the closure of cranial fontanels helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Assessing fontanels is a fundamental part of a pediatric nursing assessment. It provides vital clues about hydration status and neurological health.
A sunken fontanel is a red flag for dehydration. The nurse should immediately assess for other signs like poor skin turgor, dry mucous membranes, and decreased urine output, and prepare for fluid replacement.
A bulging or tense fontanel is a medical emergency indicating increased intracranial pressure (ICP). The nurse must report this finding immediately, minimize stimuli, and position the infant with the head of the bed elevated.

How to Approach the Question

First, identify the key information in the question: the baby's age is 19 months, and the question asks for a 'normal' finding.
Recall the normal developmental milestones for fontanel closure. You need to know the timelines for both the anterior and posterior fontanels.
Mentally review the closure times: Posterior closes early (around 2-3 months), and Anterior closes later (around 12-18 months).
Apply this knowledge to the baby's age (19 months). At this age, both fontanels should be closed.
Evaluate each option against this established normal finding.
Eliminate options that describe abnormal states, such as a sunken fontanel (dehydration) or a fontanel that should have closed much earlier (an open posterior fontanel).

Concept Tested & Keywords

Concept Tested: Normal growth and development milestones in infants, specifically the closure of cranial fontanels.
Stem keywords: 19 months baby, paediatric clinic, clinical findings, normal
Lead-in keywords: which clinical findings is normal?
Clinical cues: Age of the baby (19 months) is the critical cue for determining the expected developmental stage of fontanel closure.

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