Polysomnography: Comprehensive Sleep Disorder Evaluation, Exams of Nursing

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a patients oximeter reading during patient calibration is 88%. which of the following would be the appropriate response? - answer ✅✅ place the probe on the patients earlobe a patient with ondines curse would be expected to have which type of respiratory impairment in sleep - answer ✅✅ central sleep apnea according to the aasm, intercostal emg activity is an acceptable alternative sesor for recording what parmeter - answer ✅✅ detection of respiratory effort slow rolling eye movements occuring during stage n1 sleep will best be seen at low filter setting of - answer ✅✅ 0.3hz a 1.0 hz eeg wave is measured at 15mm peak to peak. the sensitivity is 5uv/mm. the voltage of the wave is - answer ✅✅ 75uv a cheyne stokes breathing pattern is often seen in patients with - answer ✅✅ congestive heart failure capnography measures - answer ✅✅ expired co which of the following high frequency filter settings is recommended for recording submental emg - answer ✅✅ 100hz

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 a patient has poor extremity circulation that is affecting the accuracy of the pulse oximetry readings from finger probe. which would be the most appropriate action

• answer ✅✅ put the probe on the patients ear scoring stage n1 sleep requires an absence of - answer ✅✅ sleep spindles cardiac activity in which all atrial impulses are blocked at the av junction, and the atria and ventricles beat independently is called - answer ✅✅ 3rd degree av block which of the following is an example of a rhythmic movement disorder - answer ✅✅ jactatio capitis nocturna sleep terrors are usually associated with - answer ✅✅ occurrence in the 1st third of the sleep period the image shown here is an example of - answer ✅✅ bruxism

the image shown here, is an example of - answer ✅✅ wenchebach av block in the image shown here, location 6 corresponds to which electrode - answer ✅✅ f 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

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- seconds separated by 5-90 seconds according to aasm, what is the minimum recommended digital resolution - answer ✅✅ 12 bits per sample according to aasm, what is the minimum recommended sampling rate for eeg - answer ✅✅ 500 hz according to aasm, what is the definition of stage r latency - answer ✅✅ sleep onset to the first epoch of stage r which of the following epworth sleepiness scale scores would be considered abnormal - answer ✅✅ 18 according to aasm, what is the frequency range of slow wave activity - answer ✅✅ 0.5-2 hz a patient is scheduled for a psg & in reviewing his history, you see that he had a previous psg that indicated "rem-related apnea. when would expect to see the highest concentration of respiratory events on his study - answer ✅✅ during the last third of the study in bi-level positive airway pressure, what is the purpose of the pressure drop during exhalation - answer ✅✅ increased comfort for patients who have trouble exhaling against an incoming pressure

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 ✅✅