title: Pulse oximetry: assuring accuracy.
abstract: The principles of pulse oximetry are explored in this article. It describes the accuracy of the machine as well as its limitations in practice. Specific disease entities, external factors, and laboratory values that interfere with the pulse oximeter's accuracy are described. Practical approaches, proper probe applications, and alternative methods of measuring the patient's oxygenation status are also discussed.
authors.forename: B A
authors.initials: BA
authors.lastname: Messina
mesh_terms: D000328:Adult; D002263:Carboxyhemoglobin / Q000378:metabolism; D002648:Child; D006801:Humans; D007231:Infant, Newborn; D008706:Methemoglobin / Q000378:metabolism; D010092:Oximetry; D010100:Oxygen / Q000097:blood / Q000378:metabolism*; D010108:Oxyhemoglobins / Q000378:metabolism
chemical_list: D010108:Oxyhemoglobins; D008706:Methemoglobin; D002263:Carboxyhemoglobin; D010100:Oxygen