oximetry
noun
ox·im·e·try
äk-ˈsi-mə-trē
1
: a method that utilizes spectrophotometry to measure the oxygen saturation of circulating blood or a localized region of tissue by means of an oximeter
The widest use of oximetry is in the detection of possibly lethal falls in blood oxygen in patients in operating rooms and intensive-care units …—John Stone
Cerebral oximetry is a non-invasive method for measuring the oxygenation of brain tissue.—J. Nazareth et al.
especially
: pulse oximetry
2
plural oximetries
: a test using oximetry
… 375 home oximetries were ordered by physicians in the Division of General Internal Medicine.—Matthew W. Martinez
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Merriam-Webster unabridged
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