NORCET -4 , 2023
Child Health Nursing (Pediatrics)
Easy
Which of the following is not a sign of dehydration in an infant?
Appeared in: NORCET -4 , 2023
Explanation
- Perineal excoriation refers to the breakdown or raw irritation of the skin in the perineal (diaper) area.
- This condition is a hallmark sign of diaper dermatitis (diaper rash), caused by prolonged exposure to moisture, friction, and irritants like urine and feces.
- It is a localized skin integrity problem and not a systemic indicator of the body's overall fluid status or dehydration.
Why Other Options Were Wrong
- Option B: A delayed skin pinch, also known as poor skin turgor or 'tenting', is a classic sign of dehydration.
- Option C: A dry mouth, or dry mucous membranes, is a direct consequence of decreased body fluids and is a key indicator of dehydration.
- Option D: The absence of tears when an infant is crying is a significant and reliable sign of moderate to severe dehydration.
Related Visual
- Visual 1: Diagram - A side-by-side comparison showing a normal, quick skin pinch return versus a 'tented' or delayed skin pinch, illustrating poor turgor in dehydration.
- Visual 2: Image - A clinical photograph of an infant's perineal area showing the characteristic redness and skin breakdown of perineal excoriation from diaper dermatitis.
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Assessment of dehydration in infants as background academic context rather than a clinical decision trigger.
- Accurate assessment of dehydration is a critical nursing skill in pediatrics, as infants can become severely dehydrated much faster than adults, leading to serious complications like electrolyte imbalances and hypovolemic shock.
- Nurses must be able to differentiate between a local issue like diaper rash (requiring barrier creams and frequent diaper changes) and a systemic issue like dehydration (requiring fluid replacement).
- What if? If an infant showed signs of dehydration (like dry mouth and delayed skin pinch) but also had significant perineal excoriation, the nurse should consider that the dehydration might be caused by severe diarrhea, which is also the cause of the diaper rash. The priority would be treating the dehydration.
How to Approach the Question
- First, identify the negative framing of the question by spotting the word 'not'. This means you are looking for the option that is the exception.
- The core concept is 'signs of dehydration in an infant'. Your task is to find the option that does not fit this category.
- Evaluate each option against your knowledge of pediatric assessment.
- Ask yourself for each option: 'Is this caused by a systemic loss of body fluid?'
- Delayed skin pinch, dry mouth, and no tears are all classic results of systemic fluid loss.
- Perineal excoriation is skin damage from external irritants (urine/stool). It is a local skin problem, not a systemic sign of dehydration.
Concept Tested & Keywords
- Concept Tested: Assessment of dehydration in infants
- Stem keywords: dehydration, infant, sign
- Lead-in keywords: not
- Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
- Negative lead-in flag: Question asks for the exception (NOT a sign)
Question ID
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Practise the full NORCET -4 , 2023
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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