User's Manual

SvO
2
20-7
Inserting the Catheter
Follow standard hospital procedure to prepare the patient for catheter insertion.
1. Using sterile procedures, peel back the remaining inner wrap from the catheter
tray. Pull the retainer (white tab) to release the catheter.
2. Grasp the catheter at approximately the 5 cm mark and gently pull it straight
out from the optical reference.
3. Prepare the catheter and insert it into the patient according to hospital
procedure. Oxygen saturation readings will immediately display on the
bedside monitor.
4. When the catheter is positioned properly, verify the light intensity signal is
within the correct operating range (i.e., the bars on the graph extend at least
two vertical dots within the high and low range markers).
5. Perform a light intensity calibration.
6. Begin continuous mixed venous oxygen saturation monitoring.
Performing Light Intensity Calibration
This procedure adjusts the optical module’s light intensity reference level to match
the light intensity returned through the catheter from the patient’s blood. The Sv
O
2
module stores this value and signals an alarm if the detected light differs
significantly from the stored light levels.
Perform a light intensity calibration only when the catheter is in the proper position
in the patient.
CAUTION:
• The optical fibers can be damaged if you do not draw the
catheter out carefully.
!
• Do not begin a light intensity calibration if the signal is out of
range. If this occurs, refer to Correcting Out-of-Range Light
Intensity on page 20-11.
To initiate light intensity
calibration:
1 Touch SVO2.
2 Touch CALIBRATE.
3 Touch LIGHT INTENSITY.
4 Touch YES.