Operation Everest II: Comparison of Four Instruments for Measuring Blood Oxygen Saturation

The accuracy of four devices for measuring arterial and venous saturation (SO2) was evaluated during a study of hypobaric hypoxia conducted with eight male subjects exposed progressively to simulated altitudes from sea level to 29,000 ft. Saturation was measured with the Lex-O2-Con-K (galvanic cell;...

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Bibliographic Details
Main Authors: Forte, Vincent A , Jr, Malconian, Mark K, Rock, Paul B, Young, Patricia M, Trad, Laurie A
Format: Report
Language:English
Subjects:
ACCURACY
ALTITUDE
Anatomy and Physiology
ARTERIES
ASS10
BLOOD
BLOOD ANALYSIS
BLOOD GASES
ELECTROLYTIC CELLS
Galvanic cells
HEMOGLOBIN
HYPOBARIC CONDITIONS
HYPOXIA
MEASUREMENT
MEASURING INSTRUMENTS
Medical Facilities, Equipment and Supplies
Medicine and Medical Research
Oximeters
OXYGEN
Oxygen saturation
Oxyhemoglobin
PE61102A
PHYSIOLOGICAL EFFECTS
RADIOMETERS
SATURATION
SEA LEVEL
SIMULATION
SPECTROPHOTOMETERS
SPECTROPHOTOMETRY
VEINS
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Summary:The accuracy of four devices for measuring arterial and venous saturation (SO2) was evaluated during a study of hypobaric hypoxia conducted with eight male subjects exposed progressively to simulated altitudes from sea level to 29,000 ft. Saturation was measured with the Lex-O2-Con-K (galvanic cell; oxygen content (O2 Con)/modified Siggard-Anderson Equation; Lex), IL-282 Co-Oximeter (spectrophotometric; Co-Ox), and the Radiometer ABL-300 (PO2/Siggard-Anderson Equation; ABL-300). Non-invasive spectrophotometric measurements of SO2 were made with an HP 47201A Ear-Oximeter (Ear-Ox). Saturation was calculated from O2 Con. The Co-Ox, which correlates with the Van Slyke method over a wide physiological range was used as the reference method for measuring SO2. With the exception of the Ear-Ox, each instrument compared favorably with the Co-Ox over a broad range. In conclusion, the ABL-300 and the Lex are comparable in accuracy to the Co-Ox.