Polysomnography Exam questions with correct answers

What is the system called for electrode placement CORRECT ANSWER 10-20 system where do the electrodes with odd numbers go on the scalp CORRECT ANSWER left hand side where do the electrodes with even numbers go on the scalp CORRECT ANSWER right hand side what does Z stand for CORRECT ANSWER Z is the mid-line What are the 4 land marks for electrode placement CORRECT ANSWER nasion, inion, left pre-auricular point, right pre-auricular point what is the average distance between nasion and inion CORRECT ANSWER 32 - 38 cm what is the name of the electrode site 10% above the nasion CORRECT ANSWER FPz what electrode site is 20% from FPz CORRECT ANSWER Fz Where is Cz located on the scalp CORRECT ANSWER Cz is located 50% from the nasion