20 Monitoring NMT
297
3
Select Confirm.
This automatically determines the supramaximal stimulation current and takes the reference twitch
(100%) at this current. If the NMT Module is unable to establish a reference twitch, it uses an internal
reference value for single-mode measurements.
Clearing a Reference Twitch
Clearing the Reference Twitch resets the supramaximal stimulation current and reference twitch to
default values. To clear the stored references:
In the
Setup NMT window:
1 Select Clear Reference.
2 Select the Confirm key to reset the stored supramaximal stimulation current and reference twitch
to the default values.
NOTE
This function is not available if a calibration is in progress or no calibration data is stored.
CAUTION
Changing the stimulation current or pulse width also clears stored references.
Starting/Stopping NMT Measurements
To Start NMT measurements, in the Setup NMT window select the start key for the mode used, (for
example,
Start TOF).
If you need to change the NMT settings after startup, stop the measurements, change the settings, then
restart the measurements.
To Stop NMT measurements, in the
Setup NMT window select Stop, the measurement is immediately
interrupted.
NOTE
To stop NMT stimulation in an emergency, disconnect the NMT patient cable from the NMT Module.
During an automatic measurement cycle the yellow Start/Stop LED on the NMT Module is lit. If the
automatic cycle is stopped, or the measurement mode is set to manual the LED is off.
The LED flashes (in both modes) when a stimulation pulse is given.
CAUTION
To avoid unwanted electrical shocks DO NOT touch the electrodes when the yellow Start/Stop LED
is flashing on the NMT module.
NOTE
Take care when removing the transducer from the patient. Do not pull on the cable.
To Next Page
Loading...