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RPSGT EXAM|| 2025 - 2026||ACTUAL EXAM WITH 200+
QUESTIONS AND CORRECT DETAILED
ANSWERS||VERIFIED. GRADED A+
what is the minimum number of diagnostic and therapeutic in a split study? - ANSWER- 2 diagnostic 3 therapeutic what is the most stable stage of sleep respiratory wise? - ANSWER- N3 (NREM is more stable and REM is irregular) What does common mode rejection do? - ANSWER- It is a process that takes input signals and eliminates identical voltages from two different sources (records dissimilar voltages) (higher the CMMR, the more efficient the amplifier) what should the low pass filter for an EEG be if seizures are expected?
- ANSWER- 70 Hz (usually 35 Hz) What happens to a waveform is sensitivity is increased? - ANSWER- The vertical size of the wave decreases what is the difference in gain and sensitivity? - ANSWER- Increasing gain increases amplitude and increasing sensitivity decreases the amplitude What is the shortest sleep latency for a MSLT nap? - ANSWER- 15 minutes
(longest its 35 minutes) 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
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
Every 10 minutes if respiratory muscle rest has not been achieved In BIPAP therapy, time taken to go from EPAP to IPAP is? - ANSWER- Rise Time What can BIPAP VAPS mode NOT treat? - ANSWER- Cheyne-Stokes Breathing What waveforms increase because of benzodiazepines and barbiturates?
- ANSWER- Spindles What waves are recorded in the frontal scalp? - ANSWER- Delta and K- Complexes What waves are recorded in the central scalp? - ANSWER- spindles, vertex, sawtooth waves How does LFF affect time constant? - ANSWER- The lowest LFF with have the highest time constant (inverse relationship) What does aliasing do? - ANSWER- Distorts the signal if the sampling rate is too high (will show incorrect frequency and shape) What is the difference between AC and DC? - ANSWER- AC has both LFF and HFF, DC does not have a LFF When does a child enter sleep via NREM? - ANSWER- 3 months old
What does aging do to the circadian phase? - ANSWER- advances it What order do peripheral chemistries decrease in response by sleep stage? - ANSWER- N3, N2, R 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
which of the following high frequency filter settings is recommended for recording 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
the image shown here, is an example of - ANSWER- atrial flutter what is the cardiac activity in the image shown here - ANSWER- couplet according to the 10 - 20 international system of electrode placement, t3 is located - ANSWER- 10% above the left preauricular point according to the 10-20 international system of electrode placement, cz is located
- ANSWER- at the midpoint between the 2 preauricular points and the nasion and inion the anterior-posterior intersection for the placement of c3 is located by measuring - ANSWER- 50% of the distance between fp1 and o using the recording montage channel 1 c3-m channel 2 o1-m channel 3 e2-m channel 4 e1-m an artifact appears only on channel 3. which electrode is causing the artifact
- ANSWER- e
an artifact seen in only one of the eeg channels is probably due to a problem with the - ANSWER- eeg electrode
ofter increasing rem latency. withdrawal of the medication may lead to an initial rebound of stage r and a shortening of the rem latency a high pass filter is also known as - ANSWER- low frequency filter according to the 10 - 20 international system of electrode placement, o1 and o2 are located - ANSWER- 5% on either side of oz an arousal in stage r sleep should be scored if - ANSWER- there is a >3 second burst of alhp in the occipital channel and there is a concurrent increase in the chin emg lasting at least 1 second hypercapnia is - ANSWER- elevated carbon dioxide levels in the blood a thermocouple - ANSWER- is susceptible to artifact caused by cpap flow at least three consecutive cycles of cyclical crescendo and decrescendo change in breathing amplitude with an index of 5 or more central apenas or hypopneas or a duration of at least 10 consecutive minutes is the aasm recommended rule for - ANSWER- cheyne stoke's breathing hypoxemia is - ANSWER- decreased oxygenation in the blood if a patient with suspected advanced sleep phase syndrome is studied in the sleep
lab at conventional hours (recording time from 10 to 11 p.m. to 6 to 7 a.m) what would you expect to see - ANSWER- prolonged wakefulness at the end of the 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- 10 seconds according to the aasm. what is the minimum period of time between limb movements and a plm series - ANSWER- 5 seconds which of the following patients would be most likelyto have a history of cataplexy
- ANSWER- a patient with narcolepsy 2 - 5 % of tst, in a normal young adult, is characteristic of which sleep stage - ANSWER- n a plm episode is classified as - ANSWER- at least 4 limb movements lasting 0.5- 10
during exhalation - ANSWER- increased comfort for patients who have trouble exhaling against an incoming pressure a person with delayed sleep phase syndrome is most likely to be - ANSWER- an adolescent central sleep apnea is demonstrated by which of the following - ANSWER- simultaneous cessation of airflow and respiratory effort with a signal deflection of 10mm and an input voltage of 50uv, what would the sensitivity setting be - ANSWER- 5uv intercostal emg is best seen with which time constant - ANSWER- 0.003 seconds time constant for emg would be very short this would correspond to the recommended lff setting of 10hz which of the following best describes how bi-level pressures should be adjusted for a patient with osas - ANSWER- epap is increased to eliminate apneas ipap is increased to eliminate hypopneas, snoring, and desaturation in a policy and procedure manual, which of the following best describes a procedure - ANSWER- details the implementation of a policy
a montage with the following derivations on adjacent channels is described as fp1- f3 f3-c3 c3-p3 p3-o1 - ANSWER- bipolar
