The Science Journal of the American Association for Respiratory Care

2000 OPEN FORUM Abstracts

Monitoring Oxygenation

Dean R. Hess, PhD, RRT, FAARC Massachusetts General Hospital, Boston, Massachusetts

Monitoring of oxygenation is an important aspect of the care of critically ill patients. This lecture will review a variety of such monitoring approaches, including arterial blood gases, point-of-care testing, continuous blood gas monitors, pulse oximetry, mixed venous blood gases, transcutaneous PO2, and gastric tonometry.
Objectives
1. Compare techniques to monitor oxygenation in critically ill patients
2. Discuss advantages and disadvantages for various techniques to monitor oxygenation
3. Discuss the appropriate role for monitoring of oxygenation in the care of critically ill patients
Outline
A. Arterial blood gases
1 Blood gas guidelines
B. Point-of-care testing
C. Blood gas monitors
D. Pulse oximetry
1 Issues of accuracy
2 Role in mechanically ventilated patients
E. Mixed venous blood gases
F. Transcutaneous PO2
G. Gastric tonometry
H. Monitoring and ICU alarms

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