Which of the following is not a habit disorder in children?

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2023

Explanation

Amnesia is the correct choice because it is a memory disorder, not a habit disorder.
It is characterized by a deficit in memory, such as the inability to recall past events or form new memories.
This is a cognitive dysfunction, fundamentally different from habit disorders, which are repetitive, compulsive behaviors.
Habit disorders involve an action that is repeated, whereas amnesia involves a failure of a cognitive process (memory).

Option A: Trichotillomania (hair-pulling) is a classic example of a body-focused repetitive behavior, which is a type of habit disorder.
Option B: Thumb sucking is a very common habit in childhood. While often benign, it is classified as a habit disorder when it is persistent and causes physical (e.g., dental) or social problems.
Option D: Nail biting (onychophagia) is one of the most common habit disorders, often associated with stress or anxiety.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differentiating between habit disorders and cognitive disorders in children as background academic context rather than a clinical decision trigger.
Nurses must be able to distinguish between common, transient childhood habits and disorders that require intervention.
Accurate identification is crucial for providing appropriate parental guidance, making referrals to specialists (like developmental pediatricians or psychologists), and planning care.
A key nursing role is to assess the impact of the habit on the child's physical health (e.g., infections from nail biting, dental malocclusion from thumb sucking) and psychosocial well-being.

How to Approach the Question

First, identify the key concept in the question stem, which is 'habit disorder'.
Note the negative framing: the question asks for what is 'NOT' a habit disorder.
Define 'habit disorder' in your mind: a repetitive, compulsive behavior, often done to relieve stress.
Evaluate each option against this definition.
Trichotillomania (hair pulling), thumb sucking, and nail biting are all repetitive physical actions, fitting the definition.
Amnesia is a loss of memory, a cognitive problem, not a repetitive action. It is the outlier.

Concept Tested & Keywords

Concept Tested: Differentiating between habit disorders and cognitive disorders in children.
Stem keywords: habit disorder, children
Lead-in keywords: not
Negative lead-in flag: The question asks to identify the option that is NOT a habit disorder.

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E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 289-291

E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 490-492

Practise the full RUHS, Jaipur, PB B.Sc Nursing Entrance-2023

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