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  • How long before a nap should a subject stop smoking?
  • What physiological parameter correlates with oxygen levels in the blood during sleep?
  • What is one common treatment for obstructive sleep apnea identified during a sleep study?
  • What does polysomnography primarily assess in a patient?
  • What is a common misconception about High Level Disinfection?
  • What is the significance of the Apnea-Hypopnea Index (AHI)?
  • What adjustment is often made if persistent central apneas are observed during titration?
  • When can HSV be considered according to recommended guidelines?
  • What is an optional parameter that can be included in an adult polysomnogram report according to guidelines?
  • What is the best recommendation for a non-compliant patient who refuses CPAP therapy but has an AHI of 8?
  • Which stage of sleep is most restorative to the body?
  • During stage N2 sleep, if increased snoring and an increasing leak are noted, what should the technician do?
  • What settings should be used for low frequency filter (LFF) during an EOG?
  • What does a short apnea episode typically indicate in a polysomnography report?
  • What physiological phenomena are evaluated in a Multiple Sleep Latency Test (MSLT)?
  • Which device is commonly used to capture snoring sounds during a polysomnographic study?
  • What does stray capacitance refer to in the context of polysomnography?
  • What aspect of sleep does the Epworth Sleepiness Scale measure?
  • What does "Rise Time" refer to in the context of EEG signals?
  • What is the recommended impedance level for EEG and EOG?
  • When is the "Electrical Baseline" established in a PSG recording?
  • Which patient scenario indicates the need for maxillomandibular advancement surgery?
  • What is the role of a technologist when scoring sleep stages?
  • A complaint of morning headaches associated with severe sleep apnea is often a result of what?
  • What parameter can be used to evaluate the depth of sedation in sleep laboratory settings?
  • What is the significance of monitoring oxygen saturation during CPAP therapy?
  • What method is best for detecting apneas and hypopneas during PAP titration?
  • What are the AASM guidelines for supplemental oxygen during PAP studies?
  • What does the "Mechanical Baseline" indicate in polysomnography?
  • During polysomnography, what is typically monitored alongside brain activity?
  • What respiratory event is defined by requiring oxygen desaturation and/or an arousal for scoring?
  • Which equation best expresses the time constant in a electrical circuit?
  • How can sleep debt best be described?
  • Which medications can affect sleep architecture and should be disclosed prior to a sleep study?
  • Given the data, what is the Apnea-Hypopnea Index (AHI) classification?
  • What is the maximum acceptable electrode impedance for EEG and EOG recordings according to guidelines?
  • Why is a sleep diary important before conducting a sleep study?
  • High level disinfection is used for which type of items?
  • What does the term 'sensitivity' refer to in EEG monitoring?
  • Which condition is typically diagnosed using polysomnography?
  • What is the next best step when a patient complains of claustrophobia, is unable to tolerate PAP, and requests to end the PSG?
  • What complication can arise from using alcohol before a sleep study?
  • Which aspect would be most important to document during a polysomnogram?
  • What type of sleep apnea is characterized by central nervous system failure to initiate breaths?
  • Which stage of sleep is often measured for rapid eye movement (REM)?
  • What is the primary purpose of measuring the sampling rate in digitized data?
  • During sleep studies, what do we monitor using electrooculography (EOG)?
  • What is the recommended starting pressure for pediatric and adult CPAP titration?
  • In which stage of sleep do most sleep disorders occur?
  • Which sleep stage is characterized by rapid eye movement?
  • An epoch that does not meet the criteria for active sleep or quiet sleep is known as what?
  • How does a sound recording device enhance the analysis of sleep studies?
  • What does the term "hypopnea" refer to in a sleep study?
  • What is the common outcome when snoring is recorded in a sleep study?
  • Which type of recording device captures snoring and other ambient sounds in the sleep study environment?
  • What baseline information should be collected in the patient intake process?
  • What best describes a referential montage in EEG monitoring?
  • What is the purpose of using a pulse oximeter during a sleep study?
  • A mean sleep latency indicating pathological sleepiness typically falls below what range?
  • Which measurement should be included when recording pediatric patients, according to guidelines?
  • In terms of sleep cycles, how many complete cycles does a typical adult experience per night?
  • What effect does excessive warming and humidification have on CPAP therapy equipment?
  • What is a common challenge faced by patients using CPAP therapy?
  • What technology is commonly used to monitor brain activity during sleep?
  • What is hypoxemia primarily characterized by?
  • What does the measure of resistive impedance indicate in EEG recordings?
  • Which tool assists clinicians in measuring a patient's sleep habits over time?
  • What is the primary role of a polysomnographic technologist?
  • Which condition is most likely to occur due to an improperly fitting PAP interface?
  • In polysomnography, what is a possible outcome of increased cortical activity?
  • What is the most common method used to monitor blood oxygen saturation during polysomnography?
  • When can adaptive servo ventilation be considered during a titration study?
  • Which electrode is located 30% above the left preauricular crease?
  • Which function expresses the frequency of eye movements per unit time during the sleep stage REM?
  • What state results from the inhibition of thermoregulatory mechanisms during REM sleep?
  • Amperes are measured in what units?
  • What is the most important reason for performing a Multiple Wakefulness Test (MWT)?
  • What is a key indicator of sleep apnea identifiable through a sleep study?
  • What sleep stage requires 20% to 50% of the epoch to consist of waves of 2 cps or slower with amplitudes greater than 75 uV?
  • What is the primary purpose of intentional leak during CPAP therapy?
  • Which parameter is crucial for determining the effectiveness of CPAP therapy during titration?
  • What is a characteristic of excessive daytime sleepiness?
  • According to recommended guidelines, what device should be used to monitor airflow and detect apnea during a diagnostic study?
  • What is the best response when a patient inquires about sleep apnea and the need for a CPAP mask?
  • What does the term "Sleep Latency" refer to?
  • Which tool is commonly used to evaluate subjective sleep quality and disturbances over the past month?
  • How is frequency expressed in a PSG recording?
  • What is the primary function of expiratory positive airway pressure (EPAP)?
  • What does "NREM" stand for?
  • What is the role of the EPAP setting in a BiLevel device?
  • What is the result of the ability to remontage while recording on digital equipment?
  • Which substance is known to reduce the effectiveness of PAP therapy?
  • Which of the following can reduce the effectiveness of CPAP?
  • What is a breathing pattern characterized by at least three cycles of crescendo breathing lasting at least 10 minutes?
  • Which factor can negatively impact all bioelectric channels during recordings?
  • Which substance, when consumed in large quantities, can trigger a sleep disorder related to REM sleep?
  • What artifact can disrupt the EEG signal during sleep monitoring?
  • In sleep research, what does "sleep phase" refer to?
  • Patients taking tricyclic antidepressants are at an increased risk for which condition?
  • Why is it critical to avoid caffeine and nicotine prior to a sleep study?
  • What is the term used for the arrangement of electrodes for recording physiologic activity?
  • Which of the following is an example of Pathological sleepiness?
  • Which of the following is an adverse effect of CPAP therapy?
  • What does real-time access to PAP compliance data exemplify?
  • What should technologists look for in the sound recordings collected during polysomnography?
  • What is the MOST LIKELY cause of a 35-minute REM latency?
  • What is the most commonly seen response in patients with severe sleep-disordered breathing following successful PAP titration?
  • What common side effect can occur with CPAP use?
  • What does the 'Rise Time' in EEG signify?
  • During a titration study, what are the appropriate pressures to begin a bilevel titration if apneas are eliminated at 10 CM H2O but hypopneas and snoring continue at 16 CM H2O?
  • What is the appropriate action if a patient is restless and continues to have frequent obstructive respiratory events during CPAP titration at 15 CM H2O?
  • What process involves repeated and controlled exposure to a feared situation to decrease fear of artificial circumstances?
  • How many hypopneas need to occur in pediatric patients before pressure is increased according to guidelines?
  • Who is the best candidate for an oral appliance in the treatment of OSA?
  • What is an important responsibility of the scoring technologist?
  • How many nap opportunities on a MSLT are acceptable when the patient has REM sleep on at least two?
  • What does maxillomandibular advancement involve?
  • What epoch size is recommended for recording the MSLT?
  • What is the recommended action for a patient reporting complete nasal obstruction before PAP titration?
  • What are typical indications for a polysomnography study?
  • What term describes a patient's intentional behavior that contradicts good sleep hygiene?
  • What is an adequate routine for disinfecting cup electrodes after removing adhesive residue and washing?
  • What syndrome is characterized by prolonged episodes of severe hypoxemia and elevated PaCO2 during sleep?
  • What technology is essential for recording snoring volume during a sleep analysis?
  • What setting should a technologist use to control the frequency band of waveforms on a recording?
  • What does the term "Restless Legs Syndrome" refer to?
  • What condition is most likely diagnosed when both hypoxemia and hypercapnia are present?
  • Which factor has the most significant impact on the amount of space needed to archive digitized data?
  • What does the time axis represent in a polysomnographic recording?
  • What physiological condition does hypoventilation involve?
  • How is "Sleep Efficiency" calculated?
  • Which of the following factors can trigger REM sleep behavior disorder?
  • What is a true statement regarding CPAP therapy?
  • What adjustment can be made for patients with low amplitude EEGs?
  • In sleep medicine, what does excessive snoring often signify?
  • What is an actigraph used for in sleep assessment?
  • A patient with mild dementia becomes more confused and/or agitated in the early evening. What is this condition most likely called?
  • What is a significant feature of Obstructive Sleep Apnea (OSA)?
  • Why might a technician choose to increase the pressure during a CPAP titration?
  • If a patient's apneas are fixed at 10cm but hypopneas and snoring still occur at 16cm, what levels of BiLevel should be used?
  • What is a common effect of consuming alcohol before sleep on sleep quality?
  • What is the association between sleep and memory consolidation?
  • In which situation can unattended portable monitoring be used as an alternative to in-lab testing?
  • What is meant by DC channel in polysomnography?
  • What is the primary function of a capnometer in polysomnography?
  • During a sleep study, which physiological parameter is commonly monitored in conjunction with snoring?
  • How does maxillomandibular advancement treat obstructive sleep apnea (OSA)?
  • What is the primary purpose of a CPAP machine?
  • What syndrome is diagnosed in patients with COPD and OSA?
  • What conditions are indicated by a diagnosis of overlap syndrome?
  • Which of the following is the most likely effect of zolpidem and zaleplon on sleep architecture?
  • What is the primary use of a Multiple Wakefulness Test (MWT)?
  • During CPAP titration, if SpO2 values are between 80 and 85% at 10 CM H2O without respiratory events, what should the technician do?
  • What term describes infant breathing patterns that alternate regular breathing with 5-10 seconds of apnea?
  • In the context of sleep studies, what does "EMG" stand for?
  • When do naps in sleep studies typically start?
  • How is the mean sleep latency calculated?
  • What is the normal mean sleep latency range for adults?
  • What is the main ethical consideration when conducting sleep studies on humans?
  • What is indicated by a downward deflection on an EOG reading?
  • How is cortical activity best described?
  • What does "Sleep Fragmentation" refer to?
  • What is the purpose of using a sound recording device during a polysomnographic evaluation?
  • What role does the respiratory effort belt play in a polysomnography study?
  • According to guidelines, how many hypopneas must occur prior to increasing pressure during pediatric CPAP titration?
  • What happens when a patient looks toward an EOG electrode during a sleep study?
  • What is the primary clinical use of Continuous Positive Airway Pressure (CPAP) therapy?
  • What is the primary purpose of a montage in a polysomnography study?
  • What is the recommended sampling rate for recording EEG in patients with suspected nocturnal seizures?
  • Which of the following symptoms is NOT part of the Narcoleptic Tetrad?
  • Which factor has the largest impact on adherence to PAP therapy?
  • What is the sensitivity setting recommended for EEG channels with normal amplitude?
  • According to recommended guidelines, how often should CPAP pressure be adjusted during titration?
  • What are the filter settings for respiratory effort and airflow in polysomnography?
  • What is the recommended position for patients with OSA during a sleep study?
  • What physiological findings suggestive of hypoventilation should be reviewed before a polysomnogram?
  • How is the "Reaction Time" test used in sleep studies?
  • Which component is critical for maintaining accurate electrode performance during sleep studies?
  • What is the standard minimum duration of continuous monitoring for a polysomnography study?
  • What is the main purpose of using a capnometer during a sleep study?
  • What is aerophagia?
  • What is the standard paper speed for a polysomnography recording?
  • According to recommended guidelines, what is the minimum duration considered significant for a leg movement?
  • What is the best immediate action when intermittent 60 Hz activity occurs in the F4-M1 electrodes during REM sleep?
  • What role does sound analysis play in diagnosing sleep disorders?
  • What is the purpose of an intentional mask leak in respiratory therapy?
  • In pediatric patients, if pressure adjustment is necessary, which of the following should be the basis for action?
  • What kind of patterns in the EEG are associated with REM sleep?
  • What does the term "sleep architecture" describe?
  • What type of apnea is characterized by a cessation of airflow despite ongoing respiratory effort?
  • What does the term "Periodic Limb Movements" (PLMs) refer to?
  • What adjustment should a technologist make if the amplitude of a signal exceeds channel limits?
  • What is the difference between apnea and hypopnea criteria?
  • What is the expected Normal Sleep Latency in a healthy adult?
  • Which tool is best for a physician to explain sleep study results and therapy importance to a patient?
  • Which benefit is associated with consistent PAP therapy?
  • During a polysomnography study, what would indicate a successful arousal from sleep?
  • Which ECG arrhythmia is commonly seen in PSG recordings for patients with obstructive sleep apnea and cardiac disease?
  • If a patient's chart indicates they use 30 L/min of oxygen at home, and the physician's orders specify a PSG without supplemental oxygen, what is the best action for the technologist?
  • What might a polysomnographic study indicate when a patient exhibits significant snoring?
  • What should a technologist do when there is confirmed ventricular tachycardia lasting more than 30 seconds?
  • What does the term "Common Mode Rejection" refer to in relation to differential amplifiers?
  • What factor can significantly alter nocturnal sleep patterns in adolescents?
  • How many channels are typically recorded during a full polysomnography study?
  • Which stage of sleep accounts for the greatest portion of the epoch?
  • The trace alternant pattern is associated with which stage of sleep in infants?
  • Which type of calibration is based on patient instructions to verify signal response and quality?
  • What method is used to objectively measure snoring during a sleep study?
  • What are the behavioral signs of sleep deprivation?
  • What symptom might lead a physician to recommend a polysomnography study?
  • Why is monitoring snoring important during a sleep study?
  • What physiological activity is assessed using EEG and EOG recordings?
  • What is a primary benefit of using heated humidification with CPAP?
  • What is the PRIMARY function of the EPAP setting in a bi-level device?
  • What is the recommended action if a child's oxygen saturation is below 88% during a PAP study?
  • What is one major risk factor for developing obstructive sleep apnea?
  • For effective management of obstructive sleep apnea, which therapy is most commonly prescribed?
  • What percentage of sleep in the neonate at term is occupied by REM sleep?
  • What is the most common reason for changing the PAP interface during titration?
  • In CPAP therapy, what is the main risk of not having an intentional leak?
  • What is the primary goal of polysomnography?
  • How many naps need to have unequivocal periods of REM to diagnose Narcolepsy?
  • Which device is commonly used for titration during an in-lab sleep study?
  • How does a technician measure airflow during polysomnography?
  • What is known as the pacemaker for mammalian circadian rhythms?
  • Why is selecting sampling rates according to recommended guidelines important?
  • Which of the following best describes the measurement unit of frequency?
  • What does EEG measure during a sleep study?
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