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2025-2026 RPSGT EXAM /ACTUAL 200+Qs&As|LATEST UPDATE 2025 SPRING|A+ GRADE GUARANTEE
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what is the minimum number of diagnostic and therapeutic in a split study?
What is HST? - ANSWER- Home sleep test How do you clean ECG electrodes? - ANSWER- Wipe with cleaning agent that is non-corrosive to plastic, air dry, gas sterilization as needed What are the NREM parasomnias? - ANSWER- Confusional arousals, sleepwalking, sleep terror, SRED What are the REM parasomnias? - ANSWER- Nightmares, RBD, sleep paralysis How long does a "short sleeper" sleep? - ANSWER- <6 hours (long: >10) What stage of sleep is CSA more common? - ANSWER- NREM What are SOREMPS? - ANSWER- Occurrence of REM sleep within 15 minutes of sleep onset (<2 = hypersomnia, >2 narcolepsy) What type of narcolepsy is cataplexy present? - ANSWER- Type 1 When is narcolepsy onset age usually? - ANSWER- 10 - 20 What is the effect of light therapy on circadian rhythms? - ANSWER- Light therapy in the morning, after core body temperature minimum, advances the circadian rhythm (go to bed early, wake up early)
What drugs decrease N3? - ANSWER- Clozapine Olanzapine Fluoxetine Paroxetine What drugs increase N3? - ANSWER- Cimetidine Gamma hydroxybutyrate TCA Trazadone Gabapentin Pregabalin What way do the EOGs behave? - ANSWER- If looking left, REOG has upward deflection and LEOG has downward deflection if looking right, REOG has downward deflection and LEOG has upward deflection What is needed to score REM Without Atonia (RWA)? - ANSWER- Excessive sustained muscle activity in REM and cEMG Excessive TMA in REM and chin or limb EMG 50% of mini epochs contain any chin or limb activity What is a normal PR interval? - ANSWER- 0.20 seconds
What is the Respiratory Event Index equation? - ANSWER- REI= (# of apneas + hypopneas) x 60 / monitoring time When active equipment is close to patient what kind of artifact occurs? - ANSWER- 60 Hz artifact (can also occur from poor electrode contact, defective wires, inadequate grounding, and it's see in EEG/ECG/EOG/EMG) (fix by fixing electrode and turning off unnecessary electronic equipment) How do you correct ECG artifact seen on other channels? - ANSWER- Reposition electrodes higher on chest, reposition reference leads (M1 and M2), Link M1 and M2, re-reference, use QRS filter How do you fix artifact that is "swaying"? - ANSWER- Wipe away sweat, decrease room temperature, turn on fan and remove blankets, (last resort) increase LFF (can dampen the slow waves) How is OPTIMAL CPAP titration defined? - ANSWER- RDI <5, supine REM with no arousals How is GOOD CPAP titration defined? - ANSWER- RDI <10 (or reduction of 50% when RDI baseline is <15), supine REM with no arousals How is ADEQUATE CPAP titration defined? - ANSWER- RDI >10 (but reduction of >75% from baseline RDI)
What can BIPAP VAPS mode NOT treat? - ANSWER- Cheyne-Stokes Breathing What waveforms increase because of benzodiazepines and barbiturates?
how does peripheral arterial tonometry (PAT) estimate AHI? - ANSWER- Using sleep time from actigraphy what is the max sampling rate of a CPOX during a level 1 or 3 study? - ANSWER- _<3 sec of heart rate if 80bpm What type of study can ETCO2 only be used in? - ANSWER- Diagnostic What can be best recorded by an oronasal thermal sensor? - ANSWER- Apnea What is fall time constant? - ANSWER- The time it takes for a wave to decay to 37% of max amplitude What is rise time constant? - ANSWER- The time it takes for a wave to rise to 63% of its max amplitude Short time constant should be used to Monitor what channel? - ANSWER- EMG
submental emg - ANSWER- 100hz endoesophageal pressure measurements would be most helpful in evalutating which sleep disorders - ANSWER- sleep related breathing disorders a patient being evaluated for obstructive sleep disordered breathing has atrial fibrillation. what should the tech do - ANSWER- continue to observe and document rhythm which of the following is the most dangerous cardiac rhythm - ANSWER- ventricular fibrillation how would you compute sleep efficiency - ANSWER- total sleep time divided by time in bed x 100 how do you calculate apnea + hypopnea index - ANSWER- # apneas and hypopneas divided by tst x which high pass filter setting is most appropriate for recording respiration - ANSWER- 0.1hz the purpose of an exhalation port in a cpap circuit is - ANSWER- to vent exhaled c which of the following are characteristic of a pvc - ANSWER- the qrs is wide and
bizarre a normal variation in sinus rhythm which is related to respiratory rate and results from vagal tone inhibition describes - ANSWER- sinus arrhythmia a sustained heart rate of >90 beats/minute describes - ANSWER- sinus tachycardia partial av block in which the pr interval increases progressively until there is an atrial impulse without a corresponding ventricular beat describes - ANSWER- mobitz type 1 av block what is the most likely low frequency filter setting of channel 1 - ANSWER- 1.0 hz which channel setting is best for emg recording - ANSWER- 2 chan 2 has a very quich return to baseline, (very short time constat) refer to the 30 second epoch shown here. if the next epoch contains 30 seconds of low voltage, mixed frequency in the 4-7 hz range, and no eye movements, what is the sleep stage of that next epoch? - ANSWER- stage n1 the epoch shown contains a k complex, possible a spindle and less than 20% high amplitude slow waves, making it stage n2 there is an arousal at the end of the epoch. if the following epoch is as descrived, without either a k complex or spindle. it is then stage n
according to the 10 - 20 international system of electrode placement, t3 is located
a(an) uses selective absorption of light through vascularized tissue to measure - answer- pulse oximeter, oxygen saturation according to aasm, which of the following is the recommended definition of a hypopnea - ANSWER- decrease of the nasal pressure signal by at least 30% for at least 10 seconds and at least a 4% desaturation a patient scheduled for a psg to rule out parasomnia has a benzodiazepine on their list of medications. what should you expect to see on the psg - ANSWER- decreased stage n3 a benzo is a hypnotic, decreasing sleep latency and % stage n impedance is a measure of - ANSWER- resistancer you are preparing a patient for psg who presents with a history of copd. as a tech, you should - ANSWER- be alerted to the possibility of low nocturnal oxygen levels and co2 tetention what type of light is used in a pulse oximeter - ANSWER- infrared and red a patient is scheduled for a psg with tricyclic anti depressant medication on her list of medications. what should you expect to see on her psg - ANSWER- increased rem latency tricyclix antidepressants generally are stage r suppressing ofter increasing rem latency. withdrawal of the medication may lead to an initial
recording sleep efficiency is defined as - ANSWER- the ratio of all sleep stages to trt rem sleep is associated with which of the following psychologic activity - ANSWER- variable heart rate, irregular respiration, and decrease in tonic muscle activity according to a aasm how many seconds of stable sleep must proceed each arousal
ANSWER- 12 bits per sample according to aasm, what is the minimum recommended sampling rate for eeg
what is the purpose of the msds - ANSWER- details safe handling of chemical products used in the workplace a patient is referred to the sleep lab who injects themselves with insulin for diabetes. while cleaning the set up area, the tech is accidently stuck with the needle, left by the patient. what is the first thing that the tech should do. - ANSWER- wash the area of the stick with soap and water what property of the eye makes it a dipole - ANSWER- a difference in electrical potential between the cornea and retina which of the following are psg characteristics of rem behavior disorder - ANSWER- sustained chin emg during stage r or increased transient muscle activity in the chin or left emg during stage r what is the purpose of standard precautions - ANSWER- reduce the risk of transmission's of blood-borne pathogens and pathogens from moist body substances a popular acronym for remembering fire safety is race. what does the letter c stand for - ANSWER- contain sleep paralysis - ANSWER- usually lasts a few seconds to a few minutes
a class c fire involved electrical equipment. if the equipment can't be unplugged what type of fire extinguisher should be utilized - ANSWER- carbon dioxide or dry chemical extinguisher a 30 second epoch of stage r is followed by an epoch with no change in the chin emg, no rapid eye movements, five seconds of alpha and a spindle in the second half of the epoch, how should the second epoch be scored - ANSWER- stage n nrem arousal require a concurrent change in the eeg and the - ANSWER- only eeg change is required according to a aasm what is required for an optimal pap titration - ANSWER- ahi of less than 5, and at least 15 minutes of supine stage r without frequent spontaneous arousals according to the nyquist criterion the sampling rate should be at least - ANSWER-