'Seeing red' reflects hemoglobin’s saturation state: a discovery-based activity for understanding the science of pulse oximetry

Autor:	Heidi L. Lujan, Stephen E. DiCarlo
Rok vydání:	2022
Předmět:	Oxygen Hemoglobins Physiology Oxyhemoglobins Humans Oximetry General Medicine Veins Education
Zdroj:	Advances in Physiology Education. 46:461-467
ISSN:	1522-1229 1043-4046
DOI:	10.1152/advan.00093.2022
Popis:	Pulse oximetry has become the standard of care in operating rooms, intensive care units, and hospitals worldwide. A pulse oximeter continuously and noninvasively monitors the functional oxygen saturation of hemoglobin in arterial blood ([Formula: see text]). [Formula: see text] is so important in medical care that it is often regarded as a fifth vital sign. Before pulse oximetry, arterial puncture for blood gas analysis was the only method available to determine [Formula: see text] and to identify the presence of hypoxemia. Pulse oximetry is based on the principle that oxygenated hemoglobin (O
Databáze:	OpenAIRE
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