Pathophysiology Ch 52- Sleep

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  • 1/32 Questions

    Pathways between each sensory area of the thalamus and the cortex

    • Thalamocortical loop
    • Narcolepsy
    • Periodic Breathing
    • Confusional arousals
    • Alpha rhythm
    • Actigraphy
    • Dreams
    • Sleep apnea
    • Entrainment
    • Beta Rhythm
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About This Quiz

Explore the complexities of sleep through the Pathophysiology Ch 52- Sleep quiz. Assess your understanding of REM sleep, the role of the pineal gland, diagnosis of sleep disorders like RLS, and effects of jet lag. This quiz is essential for students and professionals in medical and neurology fields.

Pathophysiology Ch 52- Sleep - Quiz

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  • 2. 

    Sudden loss of synchrony between a traveler's intrinsic circadian clock and the local time of the flight's destination

    • Jet lag

    • Change in sleep phase disorder

    • Shift work sleep disorder

    • Non-24-hour sleep-wake syndrome

    • Insomnia

    • Narcolepsy

    Correct Answer
    A. Jet lag
    Explanation
    Jet lag refers to the disruption of the body's internal clock, or circadian rhythm, due to sudden changes in time zones during travel. This can result in symptoms such as fatigue, insomnia, and difficulty concentrating. The correct answer is "Jet lag" because it accurately describes the sudden loss of synchrony between a traveler's circadian clock and the local time of their destination, leading to the characteristic symptoms experienced during travel across time zones.

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  • 3. 

    Associated with rapid eye movements, loss of muscle movements, and vivid dreaming

    • Non-REM sleep

    • REM sleep

    • Dyssomnias

    • Advanced sleep phase syndrome

    • Insomnia

    • Periodic limb movement disorder

    Correct Answer
    A. REM sleep
    Explanation
    REM sleep is a stage of sleep associated with rapid eye movements, loss of muscle movements, and vivid dreaming. During REM sleep, the brain is highly active, and the eyes move rapidly behind closed eyelids. This stage is important for memory consolidation, emotional regulation, and overall brain health. Loss of muscle movements during REM sleep is a protective mechanism to prevent us from acting out our dreams. Dyssomnias, advanced sleep phase syndrome, insomnia, and periodic limb movement disorder are sleep disorders that can affect the quality and timing of sleep, but they do not specifically involve the characteristics of REM sleep.

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  • 4. 

    Characterized by episodes of repetitive movement of the large toe with flexion of the ankle, knee, and hip during sleep

    • Non-REM sleep

    • REM sleep

    • Melatonin

    • Dyssomnias

    • Advanced sleep phase syndrome

    • Insomnia

    • Periodic limb movement disorder

    Correct Answer
    A. Periodic limb movement disorder
    Explanation
    Periodic limb movement disorder is characterized by repetitive movement of the large toe with flexion of the ankle, knee, and hip during sleep. This disorder specifically occurs during sleep and involves involuntary movements of the limbs. It is different from other sleep disorders such as non-REM sleep, REM sleep, melatonin, dyssomnias, advanced sleep phase syndrome, and insomnia, which do not involve these specific repetitive movements during sleep.

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  • 5. 

    What hormone does the pineal gland synthesize and release under the direct control of the suprachiasmatic nucleus (SCN)?

    • Growth hormone

    • Melatonin

    • Cortisol

    • Dehydroepiandrosterone (DHEA)

    Correct Answer
    A. Melatonin
    Explanation
    The pineal gland synthesizes and releases melatonin under the direct control of the suprachiasmatic nucleus (SCN). Melatonin is a hormone that regulates the sleep-wake cycle and is primarily released in response to darkness. It helps to regulate the body's internal clock and promote sleep.

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  • 6. 

    Clash between shift demands for wakefulness as part of the work environment and the sleep setting of the worker's intrinsic circadian clock

    • Jet lag

    • Change in sleep phase disorder

    • Shift work sleep disorder

    • Non-24-hour sleep-wake syndrome

    • Insomnia

    • Narcolepsy

    Correct Answer
    A. Shift work sleep disorder
    Explanation
    Shift work sleep disorder is a condition where the worker's sleep pattern is disrupted due to the clash between the demands of their work schedule and their natural circadian rhythm. This disorder occurs when individuals are required to work during hours that are typically reserved for sleep, leading to difficulty falling asleep, staying asleep, or feeling rested. The symptoms of shift work sleep disorder can include excessive sleepiness, insomnia, and difficulty concentrating. This explanation aligns with the given statement about the clash between shift demands for wakefulness and the worker's circadian clock.

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  • 7. 

    A sudden recurrent uncontrollable compulsion to sleep

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Narcolepsy
    Explanation
    Narcolepsy is a sleep disorder characterized by sudden and uncontrollable episodes of sleep during the day. It is caused by a dysfunction in the brain's control of sleep-wake cycles. People with narcolepsy may experience excessive daytime sleepiness, sudden muscle weakness or paralysis (cataplexy), hallucinations, and disrupted nighttime sleep. The given correct answer, "Narcolepsy," aligns with the description of a sudden recurrent uncontrollable compulsion to sleep, making it the most appropriate choice.

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  • 8. 

    Marked confusion, slow and inappropriate responses to questions, and nonpurposeful activities.

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Confusional arousals
    Explanation
    Confusional arousals refer to a sleep disorder characterized by marked confusion, slow and inappropriate responses to questions, and nonpurposeful activities upon awakening from sleep. This condition typically occurs during the transition from deep sleep to wakefulness and can last for several minutes. It is often seen in children and may be triggered by sleep deprivation, fever, or certain medications. Confusional arousals are different from nightmares and sleepwalking, as individuals experiencing them are usually disoriented and have difficulty understanding and responding to their surroundings.

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  • 9. 

    Recollections of mental activity that occurred during sleep

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Dreams
    Explanation
    Dreams are recollections of mental activity that occur during sleep. During the REM (rapid eye movement) stage of sleep, the brain is highly active and generates dreams. Dreams can be vivid, emotional, and sometimes bizarre experiences that involve a combination of sensory perceptions, thoughts, and emotions. They often reflect the dreamer's desires, fears, and experiences. Dreams can be influenced by various factors such as daily activities, stress, and personal experiences. They play a significant role in the understanding of sleep and the functioning of the brain during sleep.

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  • 10. 

    Restless leg syndrome (RLS) is a disorder that has its peak onset in middle age. Diagnosis of RLS is based on a history of what?

    • Compelling urge to rest legs

    • Motor relaxation

    • Symptoms that are worse in the afternoon

    • Symptoms that become worse at rest

    Correct Answer
    A. Symptoms that become worse at rest
    Explanation
    Restless leg syndrome (RLS) is a disorder characterized by an uncomfortable sensation in the legs, often described as a creeping or crawling feeling, that is relieved by movement. The symptoms of RLS typically worsen when the affected individual is at rest, such as when sitting or lying down. This is why symptoms that become worse at rest are used as a diagnostic criterion for RLS. The urge to move the legs and find relief from the discomfort is a key feature of RLS, but it is not the specific diagnostic criteria mentioned in the question. Motor relaxation and symptoms that are worse in the afternoon are not typically associated with RLS.

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  • 11. 

    Which persons have more fragmented sleep and shorter duration of stage 3 and 4 sleep?

    • Children

    • Adolescents

    • Middle-aged

    • Elderly

    Correct Answer
    A. Elderly
    Explanation
    As individuals age, they tend to experience changes in their sleep patterns. The elderly often have more fragmented sleep, meaning they wake up more frequently throughout the night. Additionally, they tend to have a shorter duration of stage 3 and 4 sleep, which are the deep sleep stages associated with physical restoration and rejuvenation. These changes in sleep patterns are commonly observed in older adults and can contribute to feelings of daytime sleepiness and fatigue.

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  • 12. 

    One of the stages of sleep is the rapid eye movement, or REM, stage. What is it that the brain cannot do during REM sleep?

    • Acquire new sensory information

    • Regulate blood pressure

    • Replay previous memories

    • Arouse auditory and visual systems

    Correct Answer
    A. Acquire new sensory information
    Explanation
    During REM sleep, the brain is unable to acquire new sensory information. This stage of sleep is characterized by rapid eye movement and is associated with dreaming. While the brain is still active during REM sleep, it is primarily focused on processing and replaying previous memories rather than taking in new sensory input. This is why we often experience vivid dreams during this stage, as the brain is reactivating and replaying stored memories rather than actively perceiving the external environment.

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  • 13. 

    Actigraphy can be used to diagnose sleep disturbances. The actigraph is worn on the wrist and is used most commonly with what?

    • Sleep diary

    • CPAP

    • Video tapes of sleep

    • Trial pharmacologic substances

    Correct Answer
    A. Sleep diary
    Explanation
    Actigraphy is a method used to monitor and study sleep patterns and disturbances. It involves wearing an actigraph device on the wrist, which measures movement and activity levels. By comparing the actigraphy data with a sleep diary, which is a record of a person's sleep habits and patterns, sleep disturbances can be diagnosed. The sleep diary provides additional information about the individual's subjective experience of sleep, such as bedtime, wake time, and quality of sleep. Therefore, using a sleep diary along with actigraphy is the most common and effective approach to diagnose sleep disturbances.

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  • 14. 

    Differential patterns of breathing associated with non-REM sleep

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Periodic Breathing
    Explanation
    Periodic breathing refers to a pattern of breathing where there are regular pauses in breathing followed by rapid and deep breaths. This pattern is often seen during sleep and is considered to be a normal variation. It is believed to be caused by fluctuations in the body's respiratory drive and the sensitivity of the respiratory centers in the brainstem. Periodic breathing can occur in individuals with certain medical conditions, such as heart failure or high altitude sickness, but it can also occur in healthy individuals, especially during sleep.

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  • 15. 

    Measures muscle motion

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Actigraphy
    Explanation
    Actigraphy is a method used to measure muscle motion, specifically in the context of sleep. It involves wearing a device, typically a wristwatch-like device, that contains a sensor to detect movement. This sensor tracks the wearer's movements and activity levels, providing information about sleep patterns and quality. Actigraphy is often used in sleep research and clinical settings to assess sleep disorders such as sleep apnea, narcolepsy, and periodic breathing. It is a non-invasive and convenient way to gather objective data about sleep and wake patterns over an extended period of time.

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  • 16. 

    Interrupted sleep caused by disordered breathing

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Sleep apnea
    Explanation
    Sleep apnea is a sleep disorder characterized by interrupted breathing during sleep. This condition causes brief pauses in breathing, which can lead to fragmented and disrupted sleep. It often results in excessive daytime sleepiness and can have various health implications if left untreated. Sleep apnea is commonly diagnosed through a sleep study, where interruptions in breathing are monitored and measured. Treatment options for sleep apnea include lifestyle changes, continuous positive airway pressure (CPAP) therapy, and in some cases, surgery.

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  • 17. 

    Disorders that produce either excessive sleepiness or difficulty initiating or maintaining sleep

    • Non-REM sleep

    • REM sleep

    • Dyssomnias

    • Advanced sleep phase syndrome

    • Insomnia

    • Periodic limb movement disorder

    Correct Answer
    A. Dyssomnias
    Explanation
    Dyssomnias are sleep disorders that can cause either excessive sleepiness or difficulty initiating or maintaining sleep. This term encompasses a range of conditions that disrupt the normal sleep-wake cycle. Some examples of dyssomnias include insomnia, advanced sleep phase syndrome, and periodic limb movement disorder. These disorders can significantly impact a person's ability to get sufficient and restful sleep, leading to various symptoms and impairments during waking hours.

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  • 18. 

    EEG pattern that occurs when a person is awake with eyes closed

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Alpha rhythm
    Explanation
    The alpha rhythm is an EEG pattern that occurs when a person is awake with their eyes closed. It is characterized by regular oscillations of electrical activity in the brain with a frequency of 8-13 Hz. This pattern is typically seen in relaxed and wakeful states, and it is believed to reflect a state of relaxed attention. The presence of the alpha rhythm suggests that the person is awake and alert, but in a relaxed state with their eyes closed.

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  • 19. 

    Daily resetting of the circadian clock

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Entrainment
    Explanation
    Entrainment refers to the process of synchronizing the circadian rhythm with external cues, such as light and darkness. This synchronization helps regulate the sleep-wake cycle and maintain a consistent sleep pattern. By resetting the circadian clock daily, the body can adjust to the natural light-dark cycle and optimize sleep quality. Entrainment is crucial for maintaining a healthy sleep-wake cycle and preventing sleep disorders like insomnia or jet lag.

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  • 20. 

    A quiet type of sleep characterized by a relatively inactive, yet fully regulating brain, and fully movable body.

    • Non-REM sleep

    • REM sleep

    • Dyssomnias

    • Advanced sleep phase syndrome

    • Insomnia

    • Periodic limb movement disorder

    Correct Answer
    A. Non-REM sleep
    Explanation
    Non-REM sleep is a quiet type of sleep characterized by a relatively inactive, yet fully regulating brain, and fully movable body. During this stage of sleep, the brain waves are slow and regular, and there is little to no dreaming. Non-REM sleep is essential for restoring and repairing the body, as well as promoting overall physical health. It is typically divided into three stages, with each stage representing a deeper level of sleep. This type of sleep is in contrast to REM sleep, which is characterized by rapid eye movements, vivid dreaming, and increased brain activity. Dyssomnias, advanced sleep phase syndrome, insomnia, and periodic limb movement disorder are all sleep disorders that can disrupt the normal sleep-wake cycle.

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  • 21. 

    Sleepwalking can occur in both adults and children. Typically, what does someone who is sleepwalking do?

    • Refuse to respond to communication efforts of other people

    • Go outside

    • Appear alert

    • Fix something to eat

    Correct Answer
    A. Refuse to respond to communication efforts of other people
    Explanation
    Sleepwalking is a parasomnia disorder in which a person engages in complex behaviors while asleep. During sleepwalking, individuals are typically unresponsive to communication efforts from others, as they are in a state of deep sleep. They may appear awake and alert, but they are actually unconscious and unaware of their actions. Going outside or fixing something to eat are possible behaviors during sleepwalking, but they are not the defining characteristic.

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  • 22. 

    In what disease is often seen more frequent periods of nighttime awakening and daytime sleeping?

    • Parkinson disease

    • Huntington disease

    • Alzheimer disease

    • Amyotrophic lateral sclerosis (ALS)

    Correct Answer
    A. Alzheimer disease
    Explanation
    Alzheimer's disease is often associated with more frequent periods of nighttime awakening and daytime sleeping. This is because the disease affects the sleep-wake cycle and disrupts the normal sleep patterns. People with Alzheimer's may experience difficulty falling asleep or staying asleep at night, leading to increased awakenings. They may also feel drowsy and fatigued during the day, causing them to nap more frequently. These sleep disturbances are common symptoms of Alzheimer's disease and can significantly impact the quality of life for individuals with the condition.

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  • 23. 

    Sleep that is chronically nonrestorative or poor in quality

    • Jet lag

    • Change in sleep phase disorder

    • Shift work sleep disorder

    • Non-24-hour sleep-wake syndrome

    • Insomnia

    • Narcolepsy

    Correct Answer
    A. Insomnia
    Explanation
    Insomnia refers to the condition of having chronic nonrestorative or poor quality sleep. It is characterized by difficulty falling asleep, staying asleep, or waking up too early in the morning. This can lead to daytime fatigue, irritability, and difficulty concentrating. Insomnia can be caused by various factors such as stress, anxiety, depression, medications, or underlying medical conditions. Treatment for insomnia may involve lifestyle changes, cognitive-behavioral therapy, or medication. Therefore, considering the given options, insomnia is the most appropriate choice as it directly relates to the description provided.

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  • 24. 

    A lack of synchronization between the internal sleep-wake rhythm and the external 24-hour day

    • Jet lag

    • Change in sleep phase disorder

    • Shift work sleep disorder

    • Non-24-hour sleep-wake syndrome

    • Insomnia

    • Narcolepsy

    Correct Answer
    A. Non-24-hour sleep-wake syndrome
    Explanation
    Non-24-hour sleep-wake syndrome is the correct answer because it refers to a condition where an individual's internal sleep-wake rhythm is not synchronized with the external 24-hour day. This means that their sleep patterns and wakefulness do not align with the typical day-night cycle, leading to difficulties in falling asleep and waking up at desired times. Unlike other options such as jet lag or shift work sleep disorder, which are temporary and caused by specific circumstances, non-24-hour sleep-wake syndrome is a chronic condition that persists over time.

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  • 25. 

    Characterized by trouble staying awake in the evening and the necessity to curtail evening activities to avoid falling asleep

    • Non-REM sleep

    • REM sleep

    • Dyssomnias

    • Advanced sleep phase syndrome

    • Insomnia

    • Periodic limb movement disorder

    Correct Answer
    A. Advanced sleep phase syndrome
    Explanation
    Advanced sleep phase syndrome is a sleep disorder characterized by trouble staying awake in the evening and the necessity to curtail evening activities to avoid falling asleep. This means that individuals with this syndrome tend to feel sleepy and have difficulty staying awake during the evening hours, leading them to limit their activities during this time to prevent themselves from falling asleep. This explanation aligns with the given description of the correct answer.

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  • 26. 

    Defined as three or more of the following: difficulty initiating sleep, difficulty maintaining sleep, waking up too early, or sleep that is chronically non-restorative or poor in quality

    • Non-REM sleep

    • REM sleep

    • Melatonin

    • Dyssomnias

    • Advanced sleep phase syndrome

    • Insomnia

    • Periodic limb movement disorder

    Correct Answer
    A. Insomnia
    Explanation
    Insomnia is a sleep disorder characterized by difficulty initiating or maintaining sleep, waking up too early, or having non-restorative or poor-quality sleep. The given definition matches the symptoms of insomnia, making it the correct answer. Non-REM sleep and REM sleep are stages of sleep, while melatonin is a hormone that regulates sleep-wake cycles. Dyssomnias refer to a group of sleep disorders, and periodic limb movement disorder is a condition characterized by repetitive limb movements during sleep. Advanced sleep phase syndrome is a circadian rhythm disorder.

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  • 27. 

    The prevalence of sleep disorders increases with age. Medication use is one reason for this. What medication can have a stimulating effect that interferes with sleep?

    • Vasoconstrictors

    • Antihypertensives

    • Beta blockers

    • Vasodilators

    Correct Answer
    A. Antihypertensives
    Explanation
    As people age, the prevalence of sleep disorders tends to increase. One reason for this is medication use. Antihypertensives, which are medications used to treat high blood pressure, can have a stimulating effect that interferes with sleep. These medications work by relaxing blood vessels and reducing the heart's workload. However, some antihypertensives can also cause side effects such as increased heart rate or insomnia, which can disrupt normal sleep patterns. Therefore, antihypertensives can be a medication that interferes with sleep in individuals with sleep disorders.

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  • 28. 

    A syndrome characterized by abnormal sleep tendencies, including excessive daytime sleepiness, disturbed nocturnal sleep, and manifestations related to REM sleep, such as cataplexy, hypnagogic hallucinations, and sleep paralysis.

    • Jet lag

    • Change in sleep phase disorder

    • Shift work sleep disorder

    • Non-24-hour sleep-wake syndrome

    • Insomnia

    • Narcolepsy

    Correct Answer
    A. Narcolepsy
    Explanation
    Narcolepsy is a neurological disorder that is characterized by abnormal sleep tendencies. People with narcolepsy experience excessive daytime sleepiness, which means they feel extremely tired and have a strong urge to sleep during the day. They also have disturbed nocturnal sleep, meaning their nighttime sleep is not restful or refreshing. In addition, narcolepsy is associated with manifestations related to REM sleep, such as cataplexy (sudden loss of muscle tone), hypnagogic hallucinations (vivid dream-like experiences), and sleep paralysis (temporary inability to move or speak while falling asleep or waking up). Therefore, narcolepsy is the correct answer in this case.

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  • 29. 

    The multiple sleep latency test (MSLT) is a diagnostic sleep study used to evaluate daytime sleepiness. What result of an MSLT woudl be considered abnormal?

    • 10 minutes

    • 12 minutes

    • 4 minutes

    • 5 minutes

    Correct Answer
    A. 4 minutes
    Explanation
    An MSLT measures the time it takes for an individual to fall asleep in a quiet environment during the day. A result of 4 minutes would be considered abnormal because it indicates a very short sleep latency, suggesting excessive daytime sleepiness. Normally, it should take around 10-20 minutes for a person to fall asleep during the MSLT. A shorter sleep latency may indicate a sleep disorder such as narcolepsy or idiopathic hypersomnia.

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  • 30. 

    EEG pattern that occurs when a persons eyes are open

    • Thalamocortical loop

    • Narcolepsy

    • Periodic Breathing

    • Confusional arousals

    • Alpha rhythm

    • Actigraphy

    • Dreams

    • Sleep apnea

    • Entrainment

    • Beta Rhythm

    Correct Answer
    A. Beta Rhythm
    Explanation
    The beta rhythm is an EEG pattern that occurs when a person's eyes are open. This brainwave pattern is characterized by fast, low-amplitude waves and is associated with alertness, concentration, and active thinking. It is commonly observed during wakefulness and periods of mental activity.

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  • 31. 

    Advanced or delayed sleep phase syndrome

    • Jet lag

    • Change in sleep phase disorder

    • Shift work sleep disorder

    • Non-24-hour sleep-wake syndrome

    • Insomnia

    • Narcolepsy

    Correct Answer
    A. Change in sleep phase disorder
    Explanation
    Change in sleep phase disorder refers to a condition where an individual's sleep-wake cycle is out of sync with the desired or socially acceptable sleep schedule. This can occur due to various factors such as traveling across time zones, shift work, or changes in daily routine. People with this disorder may experience difficulty falling asleep or waking up at the desired times, leading to disruptions in their sleep patterns. Treatment options for change in sleep phase disorder may include light therapy, melatonin supplements, and behavioral interventions to help adjust the sleep-wake cycle.

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  • 32. 

    The onset of sleep terrors is usually between the ages of 2 and 4 years. What are the manifestations of sleep terrors? Check all that apply

    • Dilated pupils

    • Rapid breathing

    • Tachycardia

    • Screams on awakening

    • Refuses to go to sleep in own bed

    Correct Answer(s)
    A. Dilated pupils
    A. Rapid breathing
    A. Tachycardia
    Explanation
    Sleep terrors are episodes of intense fear or terror during sleep, usually occurring in children between the ages of 2 and 4 years. Manifestations of sleep terrors include dilated pupils, rapid breathing, and tachycardia. These physiological responses are commonly observed during sleep terrors. Screams on awakening and refusal to go to sleep in their own bed are not specific manifestations of sleep terrors and may indicate other sleep disorders or behavioral issues.

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  • Aug 08, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 03, 2012
    Quiz Created by
    Bikisoucy
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