Perform pre-use checks following the prompts on the ventilator. The thick grey or white tubing will be required for this. The tubing can be found in the white drawer on the base of the ventilator. Attach as indicated in picture 5. This will take approximately 4 minutes.
Adjust catheter position by looking for a diminishing ECG waveform progression from the 1st to the 4th waveform (Lead 4-No P wave &small QRS wave) and the presence of a purple colour in the 2nd and 3rd waveforms as indicated in picture 7. Record the optimal insertion depth of the catheter.