RPSGT Practice 2024 (1) (Polysomnography)Correct 100%(RATED A+)

While reviewing the scoring report, the technologist noticed that the lowest SpO2 is listed as 0%. What should the technologist do next? - ANSWER Review the study, and label bad data where the pulse oximeter failed. During a multiple sleep latency test, how is sleep onset defined? - ANSWER The first 30-second epoch in which there is more than 15 seconds of cumulative sleep Where are the reference electrodes M1 and M2 placed on the head? - ANSWER In the preauricular area behind the ear or the earlobes Biocalibrations are done when? - ANSWER Biocalibrations are done at the beginning and the end of every study performed. Patients should be ask to lie___________________ - ANSWER supine and still during biocalibrations. Patients who suffer from frequent sinus infections should be advised not to wear which of the following masks? - ANSWER Nasal-pillow masks What is the recommended minimum/maximum differential for IPAP and EPAP settings during a BiPAP titration? - ANSWER 4-10 cm apart AASM recomends that IPAP and EPAP remain at least4 cm apart/ yet no higher than 10 in special circumstances and complicated patients. The physician's orders indicate that 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 ___________________________________ - ANSWER call a member of the lab management team/ run the study according to the physician's orders without verification/ attempt to contact the ordering physician, and verify the medical intent. An artifact that results from salt bridges is most likely caused by________________________________ - ANSWER incorrect measuring/ prepping too large an area / allowing tape or gauze from different lacations to make contact Consuming alcoholic beverages before a sleep study is likely to have which effect on the patients sleep architecture? - ANSWER Reduced sleep latency Which electrode site is found halfway between the inion and the nasion? - ANSWER Cz Which impedance level is considered acceptable for EMG channels, such as limbs or chin? - ANSWER Less than or equal to 10 kΩ What condition would require a full face mask or oral mask during a CPAP study? - ANSWER The patient has a deviated septum Why is precise measurement of the head important for a PSG? - ANSWER Artifacts can be caused be improper placement of electrodes, observation of important waveforms require precise placement and it is also omportant for the identification of sleep onset and specific sleep stages All of the following are indications that a patient is entering stage N1 sleep from the wake stage EXCEPT...... - ANSWER the eyes mirror the EEG frequencies which happens in N2 and N3 All of the following tasks must be completed before beginning the PSG...... - ANSWER the patient signs a consent form, biocalibrations at the begining and the end of each study are done by the tech and pre-sleep questionnaire is completed by patient A p