RPSGT EXAM MOCK QUESTIONS WITH COMPLETE SOLUTIONS GRADED A+

_________defined as conjunction with initial deflection >500msec - Answer-Slow rolling eye movements _____is the most powerful zeitgeber and regulates the circadian system. - Answer-light ____measured from trough to trough - Answer-duration A bipolar derivation utilizes which of the following? a. One electrode that overlies an electrically active area b. Two electrodes that overlie an electrically active area c. One electrode over an active and one over an inactive area d. Two electrodes that overlie an electrically inactive area - Answer-b. Two electrodes that overlie an electrically active area why? Analog systems allowed the technologist to select a string of bipolar derivations comprised of exploring electrodes that overlie electrically active recording sites for both input 1 and input 2 using a mechanical electrode selector panel. This could also be accomplished using a bipolar jack box on which designated connections listed for input 1 and input 2 of each channel routed signals directly to the respective amplifier. Today, the selector panel has been replaced by a digital system with software control of electrode switching. A bipolar derivation utilizes which of the following? - Answer-. Two electrodes that overlie an electrically active area a lower LFF setting results in - Answer-A longer time constant results in _____: A pattern of cardiac variability often seen in patients with OSA is: A. Persistent Tachycardia B.Persistent bradycardia C. Tachycardia alternating with bradycardia D. Prolonged QT interval - Answer-Tachycardia alternating with bradycardia A simple way for a sleep technologist to estimate heart rate is to count the number of QRS complexes in a 30-second epoch and: A. Write down the number as the heart rate B. Divide by 30 C. Multiply by 2 D. Determine the interval in millimeters - Answer-Multiply by 2 A small undesired electrical voltage passing through the human body is known as - Answer-mirco shock Accessory equipment such as a CPAP machine or radio placed near the headbox may cause: A. A 60-Hz artifact B. Electrode pops C. Spurious electrode impedance measures D. Gap junctions with sparking - Answer-A 60-Hz artifactAccording to the AASM Scoring Manual, a pause in the heart rate of 3 seconds or longer is called: A. Asystole B. Bradycardia C. Prolonged QT interval D. Premature ventricular contraction - Answer-Asystole 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: A. Atrial fibrillation B. Left bundle branch block C. Bradycardia D. Tachycardia - Answer-Tachycardia ACh release in the cortex is highest in stage: - Answer-rem ach-producing cells generate which of the following before the onset of REM sleep - Answer-pgo waves Actigraphy is the: A. Measurement and quantification of REM movements B.Recording and analysis of the nondominant wrist movements C. Recording of leg movements D. Home sleep testing - Answer-Recording and analysis of the nondominant wrist movements actigraphy worn____days - Answer-3 Adaptive servo ventilation is an effective treatment for which of the following disorders? A. Obesity hypoventilation syndrome B. Nocturnal asthma C. Hunter-Cheyne-Stokes breathing pattern D. Congenital central hypoventilation syndrome - Answer-hunter-cheyne-stokes breathing pattern add Apneas and hypopneas then multiply by 60 then divide by tst - Answer-AHI adults enter _________ cycles - Answer-3-5 cycles All of the following may be helpful in identifying 60-Hz artifact EXCEPT: a. applying and removing the AC (line) filter. b. decreasing time base to count the frequency. c. decreasing the HFF from 70 Hz to 35 Hz. d. increasing the LFF from 0.3 Hz to 1.0 Hz. - Answer-increasing the LFF from 0.3 hz to 1.0 hz