3001002 Rev. P
Page 19
Section 9 Connecting to patient
Section 10 Operations: General Guidelines
10-1. Check that water is properly circulating through the machine by making sure the patient
delivery tube is warm across the entire length. If good circulation cannot be confirmed, check
that the water flow is not obstructed by air bubbles in the patient delivery tube.
10-2. Check that the patient delivery tube will not be occluded by the patient’s position or moving
bed structures.
10-3. Take precautions to minimize cooling of the unheated cannula by trying to maintain contact
with the patient’s skin and insulating the exposed portion of the cannula with bedding.
10-4. During operation the door should be closed.
10-5. Check inlet gas traps for contaminates and press valve to empty any condensate, if
present.
10-6. Check that nothing blocks the vent on the back of the unit.
10.7 For optimum operation, stand facing the front of the unit at a distance that permits you to
easily read the display and reach the controls (<1m).
NOTE
: Condensation in the cannula may occur in certain ambient conditions at flow rates
less than 5 lpm (low flow cartridge) or less than 10 lpm (high flow cartridge). To minimize
condensation it is recommended not to set the temperature higher than 34°C, if using flow rates
less than 5 lpm.
WARNINGS:
• Always follow aseptic technique (including proper hand washing and avoiding direct
hand contact with connection points) when setting up the Precision Flow
™
and Standard
Precautions when placing on a patient.
• Cannula should not obstruct the nares of the patient.
• Change nasal cannulas when soiled.
NOTES:
• The cannula or other interface should be connected to the patient only when the unit has
warmed to set temperature (temperature display stops flashing).
• Droplets of condensation may appear at the end of patient delivery tube while unit is
warming up. This is normal and will stop within a few minutes when set temperature is
reached and the cannula is fitted to the patient.
• Some condensation around the nose is possible. In addition, a high moisture level may
mobilize mucus from nose and sinuses. Make sure patient has a supply of tissues.
WARNING:
Never connect the unit to a patient until it reaches set point temperature (temperature
display stops flashing). Allow the unit to warm-up to purge condensate and prevent
patient discomfort due to cold or partly humidified gas.
