Policy 7.4.8
Page 1 of 2
UTMB RESPIRATORY CARE SERVICES
PROCEDURE - Oxygen Analysis
Oxygen Analysis
Formulated: 12/02
Effective:
Reviewed:
12/30/02
5/31/05
Oxygen Analysis
Purpose
To standardize reporting practice for monitoring oxygen concentration in
gases delivered to a patient on mechanical ventilation or other devices that
have built-in venture mechanisms. Calibration of ventilator oxygen analyzers
occurs during the course of every OVP performed.
Audience
Respiratory Care Services monitors oxygen concentration by means of the R24 cell incorporated in the Siemens 300 and 300A to assure the fraction of
inspired oxygen delivered to a patient.
Scope
Registered Respiratory Therapists may perform the oxygen analysis. A
Therapist, Preceptor, or Respiratory Care Practitioner must verify all oxygen
analyses performed by students.
Physician's  All devices set to deliver oxygen concentrations greater than ambient
levels have standardized Venturi mechanisms that deliver the FIO2 as it is
Order

dialed in on the device in use. Ventilators will be checked every 6 hours
for compliance with physician's orders and/or after a change in ventilator
parameters. Ambient devices may be checked every shift in the intensive
care units and on a PRN basis in general care areas for patients on orders
for Oxygen per Protocol.
These are standard operating procedures for the Respiratory Care Service
and no physician's order is required for monitoring oxygen concentrations
per se.
Indications Oxygen concentrations are monitored so accurate correlations may be made
between the concentration of inspired oxygen and the results of blood gas
analysis or oximetry.
Contraindications
R-24 cells are used in ventilators used in the practice of respiratory care and
may not be used in the presence of flammable anesthetics. (Note: the addition
of alarms, switches and other such devices may produce a spark hazard.
Consult manufacturers literature to identify devices suitable for operation in
hazardous atmospheres).
Procedure
Step
1
Action
View the Oxygen Concentration Percent in the window above
the Alarms and Messages Panel on the 300 and the 300A. The
digital oxygen concentration display should agree with the FIO2
indicated on the control knob.
Continued next page
Policy 7.4.8
Page 1 of 2
UTMB RESPIRATORY CARE SERVICES
PROCEDURE - Oxygen Analysis
Oxygen Analysis
Formulated: 12/02
Effective:
Reviewed:
12/30/02
5/31/05
Procedure
Continued
Step
References
Action
2
Record the analyzed FIO2 displayed in the digital readout on the
ventilator rounds sheet.
3
Monitor the oxygen saturation lf patients on Venturi
mechanisms and low flow devices to establish adequacy of
oxygenation.
4
Record findings on RCS patient flow sheet.
Siemens 300I and 300A Service and Instruction Manual
AARC Clinical Practice Guidelines; Respiratory Care 2002; 47(7): 717-720:
Oxygen Therapy For Adults in the Acute Care Facility--2002 Revision and
Update
AARC Clinical Practice Guidelines; Respiratory Care 2002: 47(7): 707-716:
Selection of an Oxygen Delivery Device For Neonatal & Pediatric Patients-2002 Revision and Update
Scanlan, C., Sheldon, R., Spearman, C., Egan's Fundamentals of Respiratory
Care, 8th Edition 2003
Ward JJ; Equipment for Mixed Gas and Oxygen Therapy, In: Barnes TA, Ed.
Core Textbook of Respiratory Care Practice. 2nd edition. St. Louis: MosbyYear Book; 1994.