EEG and Electrical Standards Quiz

What is the minimum number of channels recommended for simultaneous recording of EEG activity?

• 8 channels

• 10 channels

• 12 channels

• 16 channels

What should alternating current (AC) wiring meet according to the guidelines?

• Local electrical codes only

• Underwriters Laboratories standards

• Hospital service standards only

• International electrical standards

What is a benefit of digital EEG equipment over paper-based EEG equipment?

• Lower sensitivity

• Less reliable

• Greater sensitivity

• More complex storage

What should recording electrodes be free of to ensure effective signal recording?

• High-intensity noise

• Ambient light

• Inherent noise and drift

• Electrical shielding

What is the recommended electrode system by the IFCN for EEG recordings?

• 10 to 20 System

• Modified 10 to 20 System

• Estimated 10 to 20 System

• 10 to 10 System

Why is the use of linked ears as a digital recording reference discouraged?

• It is too expensive

• It is not a stable reference

• It can cause discomfort

• It is not reformatable

What should be included in the information associated with an EEG record?

• Patient's favorite color

• Patient's occupation

• Name and age of the patient

• Patient's dietary preferences

What is the acceptable impedance range for modern digital EEG recording equipment?

• 0 to 5 Ohms

• 10 to 20 Ohms

• 0 to 10 K Ohms

• 100 to 200 Ohms

What is the purpose of appropriate calibrations at the beginning of every EEG recording?

• To ensure the equipment is turned on

• To adjust the volume

• To ensure all channels respond equally

• To check the battery level

What is the recommended sensitivity range for routine EEG recording to trace deflection?

• 5 to 10 μV/mm

• 10 to 15 μV/mm

• 15 to 20 μV/mm

• 20 to 25 μV/mm