II-G. Identifying, eliminating / monitor Flashcards
Sweat artifact is severely obscuring the EEG. What is the FIRST step the technologist should take to eliminate the artifact?
A) Turn the sensitivity down
B) Turn the LFF to 5 Hz
C) Place a rolled up towel under the head
D) Cool the patient down by removing blanket and fanning patient
Cool the patient down by removing blanket and fanning patient
Sweat artifact
A) Associated with EKG
B) Slow deflection
C) Spike
D) Eliminated with HFF 15 Hz
Slow deflection
Glossokinetic
A) Eye movement
B) Tongue movement
C) Head movement
D) Chewing
Tongue movement
An EEG shows eye blink and muscle artifact. What is the likely state of the patient?
A) Drowsy
B) Awake
C) REM
D) Stage 1 sleep
Awake
Regarding eye movement artifacts, which of the following is true?
A) With lateral conjugate eye movements the negativity is seen in the direction of the eye movement
B) The eyeball acts a dipole, with a negative pole anteriorly near the retina
C) Placement of infraorbital eye leads is of little or no clinical utility in differentiating eye movements from cortical is
D) Vertical eye movements are seen maximally at FP1 and FP2, while horizontal eye movements are recorded best F7 and F8.
Vertical eye movements are seen maximally at FP1 and PF2, while horizontal eye movements are recorded best at F7 and F8.
What is the first thing that should be done with trying to eliminate 60 Hz artifact?
A) Change the HHF settings
B) Attempting to eliminate the technical issues
C) Turn on notch filters
D) Hide channels with artifact
Attempting to eliminate the technical issues
Glossokinetic artifact
A) Instrumental
B) Mechanical
C) External
D) Biological
Biological
What is the name of artifact that appears as a prominent R wave with positivity over the left posterior quadrant of the head and can resemble spikes?
A) ECG artifact
B) Chewing artifact
C) Lateral eye movement artifact
D) Respiration artifact
ECG artifact
