Section 1: Patient Hookup and Measurements Flashcards
How far above the inferior edge of the mandible is the first chin EMG electrode placed?
1cm
What landmark in the BACK of the head is used to begin measuring EEG’s?
Inion
What landmark in the FRONT of the head is used to begin measuring EEG’s?
Nasion
What system of measurements is used to locate EEG sites?
The International 10-20 Electrode Placement System
Where are the two respiratory effort belts placed?
Around the thorax and abdomen
The distance from Fp1 to O1 (through C3) is 24cm. What is the distance from Fp1 to F3?
6cm
Where are the leg EMG electrodes placed?
Near the middle of the anterior tibialis muscle of each leg, approximately 2-3cm apart, aligned vertically
The distance from the left pre-auricular point to the right pre-auricular point is 36cm. What is the distance from Cz to T3?
14.4cm
Where is E2 located?
1cm above the right outer canthus
The distance from the nation to the inion is 32 cm. What is the distance from Cz to Pz?
6.4cm
Where is the exploring electrode placed on a 2-lead EKG for a sleep study?
Low on the left rib cage, vertically aligned with the left hip
Where is the reference electrode placed on a 2-lead EKG for a sleep study?
High on the right chest, horizontally aligned with the right shoulder