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(Circulation. 1950;1:426.)
© 1950 American Heart Association, Inc.

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Correlation of the Oxygen Saturation of the Blood and Changes in the Electrocardiogram, Blood Pressure, and Heart Rate During the Anoxemia Test

Observations on Normal Persons and Patients with Suspected and Manifest Coronary Heart Disease

JAMES A. L. MATHERS M.D.¹ ROBERT L. LEVY M.D.¹

¹ From the Department of Medicine, College of Physicians and Surgeons, Columbia University and the Presbyterian Hospital, New York, N. Y.

During the performance of a series of anoxemia tests the oxygen saturation of the blood has been determined by means of the Millikan oximeter. The levels of hypoxemia induced have been correlated with various other factors. The results are considered with particular reference to a possible critical range, within which changes in the circulation occur.

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