Value of pulse oximetry in screening for long-term oxygen therapy requirement

Autor:	christopher roberts, Jr, Bugler, Melchor R, Hetzel MR, Sg, Spiro
Rok vydání:	1993
Předmět:	Male Pulmonary and Respiratory Medicine Time Factors Oxygen Inhalation Therapy Sensitivity and Specificity Evaluation Studies as Topic Spirometry Humans Female Lung Diseases Obstructive Oximetry Hypoxia Aged Follow-Up Studies
Zdroj:	Europe PubMed Central
ISSN:	1399-3003 0903-1936
Popis:	Pulse oximetry, combined with spirometry, was evaluated as a method of selecting chronic obstructive pulmonary disease (COPD) out-patients requiring definitive arterial blood gas analysis for long-term oxygen therapy (LTOT) assessment. A relatively high screening arterial oxygen saturation by pulse oximetry (SaO2) level was set, in order to maximize sensitivity. All 113 COPD out-patients attending the hospital clinic over a 6 month period were screened. Sixty had a forced expiratory volume in one second < 1.5 l and 26 had an SaO2 < or = 92%. These 26 underwent arterial blood gas analysis. Nine had an arterial oxygen tension < 7.3 kPa all with an arterial carbon dioxide tension (PaCO2) > 6 kPa. A further eight had a PaO2 < 8 kPa. This produced a sensitivity of 100% and specificity of 69% for oximetry in the detection of PaO2 < 7.3 kPa determined by direct arterial puncture and 100% and 86% respectively for detecting a PaO2 < 8 kPa. Although the poor specificity of oximetry in the crucial PaO2 range makes it unsuitable, when used alone, for prescription of LTOT, it may prove valuable in selecting patients who require further definitive arterial blood gas analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4346bb72f1c39091d676214a06f93689 https://doi.org/10.1183/09031936.93.06040559 Zobrazit plný text záznamu