AASM SLEEP TECH PRACTICE TEST 2025 LATEST UPDATE| 400 ACTUAL QUESTIONS WITH CORRECT ANSWERS

While reviewing the scoring report,the tech noticed that the lowest SpO2 is listed at 0%.What should the tech do next? 1. Do nothing as the report is accurate 2. Review the study and label bad data where the pulse oximeter failed 3. Reschedule the patient for a repeat study because of corrupted data 4. check the pulse oximeter before attempting to generate the report again: - Review the study and label bad data where the pulse oximeter failed 2. During a multiple sleep latency test, how is sleep onset defined? 1. Three or more epochs of stage N1 or a single epoch of the other sleep stages 2. When spindles are seen 3. The first 30-second epoch in which there is more than 15 seconds of cumulative sleep 4. The first 30-second epoch in which alpha beginsto subside: The first 30-sec- ond in which there is more than 15 seconds of cumulative sleep 3. Where are the reference electrodes M1 and M2 placed on the head? 1. On the earlobes 2. In the preauricular behind the ear 3. On either side of the Cz electrode placement 4. Both "on the earlobes" and "in the preauricular area behind the ear": In the preauricular behind the ear 4. True statements about the process of biocalibrations include all of the following EXCEPT: 1. The tech notes should reflect the movements made by the patient 2. The patient should be supine and still throughout biocalibrations 3. Biocalibrations are done at the beginning of the study only 4. Nasal and oral breathing are done on the NPSGs only: Biocalibrations are done at the beginning of the study only 5. Patients who suffer from frequentsinusinfectionsshould be advised not to wear which of the following masks? 1. Nasal masks 2. All of these answer choices 3. Full face masks 4. Nasal-pillow masks: Nasal pillow masks 6. What is the recommended minimum/maximum differential for IPAP and EPAP settings during a BIPAP titration? 1. 6-10cm apart 2. 2-8cm apart 3. 4-6cm apart 4. 4-10cm apart: 4-10cm apart 7. The physician's orders indicate the patient is in the lab for a CPAP titration study; however, the patient insists he has never had a sleep study before. All of the following solutions would be acceptable to resolve this situation EXCEPT: 1. Attempt to contact the ordering physician, and verify the medical intent 2. Call a member of the lab management team 3. Run the study according to the physician's orders without verification 4. Look through the patients chart for evidence of a previous study: Run the study according to the physicians orders without verification 8. While in the sleep lab, a patient has to do all the following EXCEPT: 1. Have PSG equipment attached to the body 2. Sign a consent form 3. Remain supine for the entire study 4. Remain connected to equipment for at least 6 hours: Remain supine for the entire study 9. An artifact that results in salt bridges is most likely caused by 1. Prepping too large of an area 2. Allowing tape or gauze from different locations to make contact 3. All of these answer choices 4. Incorrect meansuring: All of these answer choices 10. Consuming alcoholic beverages before a sleep study is likely to have which effect on the patients sleep architecture? 1. Less waking after sleep onset 2. Reduced sleep latency 3. Decreased amount of slow wave sleep 4. Increased REM sleep: Reduced sleep latency 11. Which electrode site is found halfway between the inion and the nasion? 1. P4 2. Fz 3. Cz 4. Pz: Cz 12. Which impedance level is considered acceptable for EMG channels,such as limbs or chin? 1. Greater than 15k& 2. Less than or equal to 10k& 3. Less than or equal to 5k& 4. Lessthan or equal to 25k:&Less than or equal to 10k& 13. What condition would require a full face mask or oral mask during a CPAP study? 1. The patient is claustrophobic 2. The patient has a deviated septum 3. The patient feels congested 4. The patient is a mouth breather: The patient has a deviated septum 14. Why is precise measurement of the head important of a PSG? 1. Artifacts can be caused by improper placement of electrodes 2. Isisimportant for the identification ofsleep onset and specific sleep stages 3. Observation of important waveforms require precise electrode placement 4. All of these answer choices are true: All of these answer choices are true 15. All of the following are indicationsthat a patient is entering stage N1 sleep from the wake stage EXCEPT: 1. The eyes mirror the EEG frequencies 2. Alpha frequencies in occipital channels have reduced or stopped entirely 3. There is a reduction in chin EMG amplitude 4. The eyes roll gently: The eyes mirror the EEG frequencies 16. DECREASING the sensitivity would result in what change in the EEG waveform? 1. Decrease the height of the waveform 2. Attenuate the lower frequencies 3. Increase the height of the waveform 4. Eliminate EKG artifact: Increasing the height of the waveform 17. What is the RECOMMENDED decrease in SpO2 needed for an event to be scored as an hypopnea? 1. 4% 2. 2% 3. 3% 4. 5%: 3% 18. What is the frequency of Delta waves? 1. 0.5-2Hz 2. 8-13Hz 3. 4-7Hz 4. 13Hz: 0.5-2Hz 19. The rate at which a wave repeats itself or oscillates is called the: 1. Sensitivity 2. Filter 3. Frequency