#1
Which of the following is a common method for monitoring sleep during a sleep study?
Electroencephalogram (EEG)
ExplanationMonitoring brain activity during sleep.
#2
What does the term 'AHI' stand for in the context of sleep studies?
Apnea-Hypopnea Index
ExplanationIndex measuring apnea and hypopnea events.
#3
What is the purpose of a Split-Night Study in polysomnography?
To assess both diagnostic and treatment aspects in a single night
ExplanationCombining diagnosis and treatment in one night.
#4
Which sleep stage is often associated with vivid dreaming?
REM (Rapid Eye Movement) sleep
ExplanationSleep stage characterized by vivid dreaming.
#5
What is the primary purpose of a Multiple Sleep Latency Test (MSLT) in sleep medicine?
To evaluate daytime sleepiness and diagnose narcolepsy
ExplanationAssessing daytime sleepiness and narcolepsy.
#6
What is the primary purpose of Continuous Positive Airway Pressure (CPAP) therapy in sleep medicine?
To treat sleep apnea by keeping the airways open
ExplanationMaintaining open airways to treat sleep apnea.
#7
Which term refers to the complete cessation of airflow during sleep for 10 seconds or more?
Apnea
ExplanationComplete cessation of airflow during sleep.
#8
Which sleep disorder is characterized by an overwhelming urge to sleep at inappropriate times?
Narcolepsy
ExplanationCondition causing uncontrollable sleep urges.
#9
What is the purpose of a nocturnal oximetry test in sleep medicine?
To assess blood oxygen levels during sleep
ExplanationEvaluating blood oxygen levels during sleep.
#10
Which respiratory parameter is commonly measured using capnography during sleep studies?
Carbon dioxide levels in exhaled air (EtCO2)
ExplanationMeasuring exhaled CO2 levels during sleep.
#11
What is the primary purpose of a Bi-level Positive Airway Pressure (BiPAP) machine in sleep therapy?
To provide different pressures during inhalation and exhalation
ExplanationOffering varied pressures during breathing cycles.
#12
What is the purpose of titration in the context of positive airway pressure therapy?
To optimize the CPAP pressure for individual patients
ExplanationAdjusting pressure for optimal therapy.
#13
Which of the following is a potential side effect of long-term use of positive airway pressure therapy?
Facial skin irritation
ExplanationPossible skin irritation due to therapy.
#14
Which parameter is often measured using a pulse oximeter during sleep studies?
Oxygen saturation
ExplanationMeasuring oxygen levels in the blood.
#15
In the context of positive airway pressure therapy, what does the term 'Ramp' refer to?
A gradual increase in pressure at the start of therapy
ExplanationGradual pressure increase at therapy onset.
#16
Which sleep disorder is characterized by the repeated, involuntary cessation of breathing during sleep?
Sleep apnea
ExplanationRepetitive, involuntary breathing pauses during sleep.
#17
What does the term 'Desaturation' refer to in the context of sleep studies?
A decrease in blood oxygen saturation
ExplanationReduced blood oxygen levels during sleep.