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Vol. 4. Issue 3.
Pages 307-313 (May - June 1998)
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Vol. 4. Issue 3.
Pages 307-313 (May - June 1998)
ARTIGO DE REVISÃO/REVIEW ARTICLE
Open Access
Oximetria: papel no estudo do doente respiratório
Oximetry: role in the evaluation of the respiratory patient
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J.C. Winck*, L. Ferreira**
* Assistente Hospitalar, Serviço de Pneumnlogia
** Interna Complementar, Serviço de Pneumnlogia
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RESUMO

A oximetria de pulso é uma técnica espectrofotométrica, que mede a variação pulsátil da traosmissão da luz. A relação dn absorção pulsátil em doís comprimentos de onda corresponde à Saturação de 02 (Sa02). As grandes vantagens dn oximetria são o seu carácter não invasivo, a medição continua e resposta rápida, que permite o reconhecimento instantâneo da hipoxemia. A sua fiabilidade diminui nomeadamente em presença de hemoglubinas anormais, hipotermia e anemia. As suas aplicações clínicas no âmbito do diagnóstic da sindrome da apeneia do sono até à monitorização da ventiloterapia domicíliária.

REV PORT PNEUMOL 1998; IV (3): 307-313

Palavras chave:
Oximetria de pulso
Sindrome da apneia do sono
DPOC
Ventiloterapia domiciliária
ABSTRACT

Pulse oximetry is a spectrophotomtnic technique that measures the pulsatile change in light transmission. The ratio of pulsatile absorption at two wave lengths corresponds to 02, saturation (Sa02). Oximetry has the advantge of being noninvansive, allowing for continuous of rapid measurements leading to the immediate recognition of hypoxemia. It is less reliable in the presence of dyshemoglobins, hypotermia and anemia. The clinical uses of oxymetry in respiratory medicine are very wide: from the diagnosis of sleep apnoea syndrome to monitoring nasal ventilation.

REV PORT PNEUMOL 1998; IV (3): 387-313

Key-words:
Pulse oximtuy
Sleep apnoea syndrome
COPD
Home mechanical ventilation
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Copyright © 1998. Sociedade Portuguesa de Pneumologia/SPP
Pulmonology
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