GE HEALTHCARE E-PRESTN, Technical Manual

Page: 455 / 622

EEG Module, E-EEG, and EEG Headbox, N-EEG
12 - 9
2062973-004
a. Start a manual electrode impedance check by pressing the Imp. Check key on the
module.
b. Check that message “Checking electrodes” appears to the EEG1 and EEG2
parameter windows. Wait until the electrodes are checked and ‘Electrodes Ok’
message is shown.
c. Check also that electrode impedance values shown in the Numeric View in EEG
View menu are less than 10 k
Ω
for the ch1 and ch 2 Imped+ and Imped- electrodes
and no error messages are shown in the parameter windows.
2. EEG measurement
a.
Check that a sine waveform appears to the EEG1 and EEG2 waveform fields.
b. Select Numeric View in the EEG View menu and check that the MF value is 2.0 ± 0.5
Hz, Delta% > 99 and Amplitude is 35 ± 3 μ V.
3. AEP stimulation
a.
Start a manual AEP stimulation sequence by pressing the EP Start/Stop key on the
EEG headbox.
b. Check that a clicking sound comes from the earphones.
c. Press the EP Start/Stop key on the module or on the headbox to stop the AEP
stimulation.
4. Mark this task as complete on the checkout form.
3.3.3 Test completion
Select Discharge patient or Reset case to discard any changes made to the monitor
configuration during checkout.
5.
Complete on the “Maintenance check form” on page 12-23.