Polysomnography exam questions with correct answers

How many electrodes are in involved in a chin EMG and where are there placed? CORRECT ANSWER 3- one top center and the other two 2 cm down and 2 to the left and 2 cm down a 2 to the right. EKG led placement has been standardized to which two locations? CORRECT ANSWER Right clavicle and left lower rib parallel to the hip. What are the new standard led placement for the leg electrodes? CORRECT ANSWER Anterior tibialis 2 cm apart According to the ASSM parodical what is the maximum electronic impedance for EEG recording electrodes? CORRECT ANSWER 5000 oms What is the routinely recorded frontal in the polysomnographic study? O2, F4, C4, or P4 CORRECT ANSWER F4 Which of the following is a term describing monitoring of Eye movement? EEG, EMG, EOG, or EKG CORRECT ANSWER EOG The low frequency filter setting for the EKG deviation is what? 1 Hz, 0.3 Hz, 10 Hz, or 0.1 Hz CORRECT ANSWER 0.3Hz What electrode is placed 30% up from the left Preauriculer ? CORRECT ANSWER C3