Which of the following condition that has recurrent, sudden episodes of irresistible sleep attack of short du… - NVS Staff Nurse - 2022

NVS Staff Nurse - 2022

Medical & Surgical Nursing

Easy

Appeared in: NVS Staff Nurse - 2022

Explanation

Narcolepsy is a neurological disorder defined by excessive daytime sleepiness and frequent, overwhelming urges to sleep, known as sleep attacks.
The key feature described in the question—recurrent, sudden, and irresistible episodes of sleep—is the classic presentation of narcolepsy.
These sleep attacks can happen unexpectedly during any activity, distinguishing narcolepsy from other sleep disorders.
Unlike general sleepiness (hypersomnia), the sleep attacks in narcolepsy are typically short and can be refreshing.

Option A: Circadian rhythm sleep disorders involve a misalignment between a person's internal body clock and the external environment. This results in difficulty sleeping at desired times, not sudden, irresistible sleep attacks.
Option B: Insomnia is characterized by difficulty initiating or maintaining sleep, or non-restorative sleep. It is a disorder of insufficient sleep, the opposite of the symptoms described.
Option D: Hypersomnia involves excessive daytime sleepiness and prolonged sleep periods. However, it does not typically feature the sudden, brief, and uncontrollable 'sleep attacks' that are the hallmark of narcolepsy. Naps in hypersomnia are often long and unrefreshing.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differential Diagnosis of Sleep Disorders as background academic context rather than a clinical decision trigger.
Patient safety is the highest priority for individuals with narcolepsy due to the risk of accidents. Nurses must conduct thorough safety assessments, especially regarding driving and operating machinery.
Patient education is a key nursing role, focusing on lifestyle modifications like scheduled naps, maintaining a regular sleep-wake cycle, and avoiding alcohol or CNS depressants.
What if? If the patient reported sudden muscle weakness triggered by laughter in addition to the sleep attacks, this would strongly confirm the diagnosis of Narcolepsy with Cataplexy, a common and defining feature.

How to Approach the Question

First, break down the question to identify the core symptoms. The key phrases here are 'recurrent, sudden episodes,' 'irresistible sleep attack,' and 'short duration.'
Recognize that this specific combination of symptoms points to a classic definition of a particular sleep disorder.
Evaluate each option against these defining characteristics.
Eliminate 'Insomnia' as it's about lack of sleep.
Eliminate 'Circadian rhythm sleep disorder' as it's about the timing of sleep, not sudden attacks.
Differentiate between 'Narcolepsy' and 'Hypersomnia.' The 'sudden, irresistible' nature of the sleep episodes is the key differentiator pointing directly to Narcolepsy.

Concept Tested & Keywords

Concept Tested: Differential Diagnosis of Sleep Disorders
Stem keywords: recurrent, sudden episodes, irresistible sleep attack, short duration
Lead-in keywords: Which of the following
Negative lead-in flag: false

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E6 Nursing Fundamentals Taylor p. 218-220

E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 1566-1568