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BOARD PREP EXAM 1 WITH
CORRECT ANSWERS 2025 GRADED
A+
If a high frequency artifact appears in a single EEG channel that shares a reference electrode with other channels, the appropriate response is to correct answers >> Eliminate the artifact by re-referencing the input signal derivation to a back-up reference electrode The T wave represents correct answers >> Ventricular repolarization How much slow wave sleep is normal for an adult correct answers >> 20% A 90% drop in airflow with continued respiratory effort. correct answers >> obstructive apnea
What will happen to pen deflection if the sensitivty is changed from 7uv/mm to 5uv/mm correct answers >> If sensitivity increases, pen deflection decreases A pH probe helps diagnose which of the following? correct answers >> esophageal reflux A patient on CPAP at 17 cm H2O has a prolonged desaturation during rapid eye movement (REM) sleep lasting up to 2 minutes in length and progressing from the 80% down to the 50%. What is the MOST appropriate technologist response? correct answers >> Assess patient and determine therapeutic response A patient undergoes a split-night sleep study with continuous positive airway pressure (CPAP) application. Which of the following instructions would be MOST beneficial for the patient? correct answers >> contact the physician to get sleep study results A patient undergoing polysomnography has a history of COPD. Which of the following is MOST likely to occur during the sleep study? correct answers >> abnormal baseline of spo
A time constant of 1 second is equal to a LFF setting of: correct answers >> 0.16Hz According to RECOMMENDED guidelines, the polysomnogram report must include correct answers >> Time in minutes in each sleep stage According to RECOMMENDED pediatric titration guidelines, CPAP should be increased after observing at least correct answers >> 3 RERAs According to the American Academy of Sleep Medicine (AASM) Scoring Manual, a sustained (30 seconds or longer) heart rate of 90 beats per minute or higher during sleep is called: correct answers >>. Tachycardia According to the RECOMMENDED guidelines, unattended portable monitoring devices must include correct answers
Blood oxygenation
Adaptive servo ventilation devices provide varying amounts of inspiratory support. The support is lowest during: correct answers >> Hyperneic phase of periodic breathing Adaptive servo ventilation is an effective treatment for which of the following disorders? correct answers >> Hunter- Cheyne-Stokes breathing pattern Adjusting the sensitivity from 5uV/mm to 10uV/mm will: correct answers >> Reduce the pen deflection by one half After a standard sleep study procedure, high level disinfection should be used for which of the following devices? correct answers >> Oronasal thermocouple An apnea episode is scored as obstructive when: correct answers >> continued or increased inspiratory effort exists. Arousal index is calculated by correct answers >> Dividing arousal by total sleep time in hours Beginning just past the 30-second mark on this 120-second example, the event lasting approximately 20 seconds on the
Contradictions for using oral appliance therapy include all of the following except: correct answers >> Temporomandibular joint (TMJ) disorder Cycles per second is synonymous with correct answers >> Hertz Deep sleep occurs in which sleep stage? correct answers >> N During CPAP titration in an adult patient, the SpO2 monitor reads 87% in the absence of obstructive respiratory events. What is the BEST action for the technologist to take? correct answers >> Titrate supplemental oxygen if the Sp remains less that 89% for at least 5 minutes During a PAP titration supplemental O2 should be connected to the correct answers >> PAP device outlet During a bilevel PAP titration with a setting of 17/13 cm H2O, the patient exhibits two obstructive apneas over the course of 7 minutes. Neither of these events is associated with an arousal. The technologist's BEST immediate response would be to: correct answers >> increase both IPAP and EPAP
During a sleep study, the technologist notices episodes of a 35% drop in signal excursion on the nasal pressure channel lasting 15 seconds with an accompanying desaturation on the SpO2 channel of 5%. No respiratory effort is noted throughout the event. The sleep technologist suspects the patient is having: correct answers >> central hypopneas During amplifier calibrations, the polysomnograph displays signals of: correct answers >> 50uV and -50uV During adult bilevel titration, the technologist should increase IPAP pressure after correct answers >> loud snoring after 3 minutes During an overnight polysomnography, the sleep specialist notices conjugate, reasonably regular sinusoidal movements in the EOC with an initial deflection longer than 500 msec. The previous sleep state of the patient was most likely stage: correct answers >> wake During an overnight study, a sleep technologist notices a sequence of breaths lasting longer than 10 seconds with flattening of the inspiratory portion of the nasal pressure
