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Quality of EEG recordings in neurology clinics in Iran Volume 21, issue 4, August 2019

TEST YOURSELF

(1) Which setting is not appropriate to record an EEG?

A. The sensitivity for routine EEG recording should be set in the range of 5 to 10 µV/mm.

B. The low-frequency filter (or high-pass filter) should be no higher than 1 Hz.

C. The high-frequency filter (or low-pass filter) should be no lower than 35 Hz.

D. The notch filter should be used only with other measures to reduce 60-Hz (or 50-Hz) interference fail.

(2) What is the minimum acceptable duration for a routine EEG recording in the office?

A. 10 minutes

B. 5 minutes

C. 20 minutes

D. 60 minutes

(3) Low-frequency filter settings greater than 1 Hz may limit information during which of the following conditions?

A. When pathologic delta activity is present

B. When an interictal focal sharp wave is present

C. When spike-waves are present

D. When polyspikes are present

 

 

 

 

 

 

 

See answers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Answers

(1) C.

 

(2) C.

 

(3) A.

 

 

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