Sleep Disorders

Question 1

Disorder vs Disturbance

(4)

Answer 1

• disturbance - any issue that disrupts an individual’s normal sleep wake cycle
  e.g. sleep-wake cycle shift in adolescence, jet lag
• disorder - sleep disturbances are more persistent and serious causing distress/dysfunction in everyday life
  e.g. DSPS, ASPS, SWSD

Question 2

Circadian Rhythm Sleep Disorders

(2)

Answer 2

• disruption to the sleep-wake cycle primarily due to a mismatch between an individual’s cycle and the desired cycle
  e.g. DSPS, ASPS, SWSD

Question 3

Delayed Sleep Phase Syndrome

(4)

Answer 3

• sleep-wake cycle is significantly later (2+ hours) than what is desired
• sleep-onset insomnia, difficulty awakening at desired time and excessive sleepiness
• for at least 1 month
• 2 weeks or more of subjective sleep data

Question 4

Advanced Sleep Phase Syndrome

(4)

Answer 4

• sleep schedule consistently runs earlier than desired
• inability to stay awake and inability to remain asleep until desired
• for at least 3 months
• polysomnographic monitoring between a 24-36 hour period

Question 5

Shift Work Sleep Disorder

(2)

Answer 5

• work shifts overlap with desired sleep schedule leading to displacement of sleep-wake cycle
• excessive sleepiness and fatigue