Polysomnography Performing Polysomnography questions with correct answers

There are two types of sleep studies: CORRECT ANSWER 1. Overnight polysomnograms (PSGs) 2. Daytime nap studies list the types of overnight polysomnograms: CORRECT ANSWER could be level 1 or 2, seizure montages, CPAP titrations, etc list the types of daytime nap studies: CORRECT ANSWER multiple sleep latency test, maintenance of wakefulness test list the required equipment and components of a routine PSG (level 1): CORRECT ANSWER - EEG or electroencephalogram (a minimum of F4/M1, C4/M1 and O2/M1, with backup electrodes @ F3, C3, O1 and M2) - EOG or electrooculogram (a minimum of 2 channels are required e.g. E1/M2 and E2/M2) - EMG or electromyogram: submental EMGs record chin activity - oral and nasal air flow with one of the following (direct measurement (pneomotach)' indirect measurement from expired CO2; the use of thermistors or thermocouples' and nasal pressure devices when appropriate (e.g. in a patient with suspicion of Upper airway resistance) ) - respiratory effort by one of the following (piezoelectric belts; strain guages, esophageal balloons; impedance pneumography; pneumatic effort devices; or inductance plethysmography) - snoring sensors (acoustic sensory, piezoelectric sensory or nasal pressure transducer) are optional and cannot be used in replacement to any of the above means of measuring respiratory effort - ECG or electrocardiogram (two lead ECG is typically used) - arterial oxygen saturation via oximeters