A nurse is counseling a family whose child has been diagnosed with Down syndrome. Which of the following is a common characteristic of Down syndrome?

1. A

   Short stature and cognitive delays

2. B

   Long limbs and reduced muscle tone

3. C

   High IQ and exceptional physical skills

4. D

   Lack of physical abnormalities

Appeared in: NORCET 7 Prelims -2024

Explanation

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• Down syndrome is the most common chromosomal abnormality leading to intellectual disability.
• Short stature is a consistent physical finding due to overall growth retardation.
• Cognitive delays are a hallmark feature, with most individuals having an IQ in the mild-to-moderate range of intellectual disability.
• More than 80 clinical features characterize the phenotype of Down syndrome, including cognitive impairments and hypotonia.

Why Other Options Were Wrong

• Option B: This option is only partially correct. While reduced muscle tone (hypotonia) is a key feature of Down syndrome, individuals with this condition have short limbs and digits (brachydactyly), not long limbs.
• Option C: This is the opposite of the typical presentation. Down syndrome is characterized by cognitive delays and intellectual disability, not a high IQ.
• Option D: This is factually incorrect. Down syndrome has a very distinct set of physical features (phenotype), including a flat facial profile, upward-slanting eyes, and a single palmar crease.

Related Visual

• Visual 1: Diagram - An illustration of a child with Down syndrome, with labels pointing to key physical features like upward-slanting eyes, a flat nasal bridge, a single palmar crease, and a sandal gap. This helps learners visualize the phenotype.
• Visual 2: Karyotype - A picture of a human karyotype showing three copies of chromosome 21 (Trisomy 21), which is the genetic basis for Down syndrome.
• Visual 3: Growth Chart - A comparison of a standard pediatric growth chart and a specialized growth chart for children with Down syndrome, illustrating the difference in expected stature.

Clinical Relevance

• Nursing practice connection: Use the key finding related to Clinical features of Down syndrome (Trisomy 21) to guide bedside assessment, documentation, and the next nursing action.
• Nurses play a crucial role in counseling families of children with Down syndrome, providing accurate information, emotional support, and resources for early intervention programs.
• Early intervention services (including physical, occupational, and speech therapy) are critical for children with Down syndrome to help them reach their full potential, addressing issues like hypotonia and speech delays.
• Nurses must be aware of the common co-morbidities associated with Down syndrome, such as congenital heart defects and thyroid issues, to ensure appropriate screening and management.

How to Approach the Question

• First, identify the core concept of the question, which is the 'common characteristics of Down syndrome'.
• Recall the key features of Down syndrome. Think about the physical, cognitive, and developmental aspects.
• Evaluate each option against your knowledge. Option A mentions two classic features: short stature and cognitive delays.
• Analyze the distractor options. Option B is partially correct (reduced muscle tone) but incorrect about limb length. This makes it a tricky but ultimately wrong choice.
• Eliminate options C and D as they are factually opposite to the known characteristics of Down syndrome.
• Confirm that Option A provides the most accurate and complete description among the choices.

Concept Tested & Keywords

• Concept Tested: Clinical features of Down syndrome (Trisomy 21)
• Stem keywords: Down syndrome, common characteristic, counseling
• Lead-in keywords: Which of the following is
• Clinical cues: Child diagnosed with Down syndrome
• Negative lead-in flag: false

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QlJRmeGPN16q67YmvfiHxH

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