Covidien Puritan Bennett 540, User Manual, Page: 73 / 141

Oxygen
Puritan Bennett 540™ Ventilator User’s Manual
4-13
The exhalation block requires calibration and should only be removed or cleaned by qualified
personnel.
Figure 4-13. Removing the Exhalation Block
4.8 Oxygen
4.8.1 Administering Oxygen
Oxygen administered to the patient is introduced from an external source into the machine through
the oxygen connector at the rear of the ventilator. It is then integrated into the total volume of
delivered air. It is recommended that the oxygen ports on the ventilator be capped when not in use.
The specific oxygen flow to the patient depends on the physiological characteristics of the patient
and the ventilator settings.
The oxygen flow setting should be adjusted for each patient and established in relation to a calibrated
oxygen monitor measurement. Since the factors that affect administered oxygen flow may change
over time, you must ensure that these settings always correspond to the
current oxygen therapy
objectives specified by the physician.
Note:
To monitor patient Oxygen levels use an external sensor/alarm.
1
2
WARNING
The ventilator must not be used with flammable anesthetic substances.
WARNING
Oxygen therapy for patients with respiratory failure is a common and effective medical prescription.
However, oxygen therapy should always be used with the utmost care; too high an oxygen flow is likely to
lead to serious complications for the patient.