Pulse oximeters in the evaluation of oxygen transportation in critical patients

Authors

  • Wilma Aparecida Nunes Universidade de São Paulo; Escola de Enfermagem
  • Renato Giuseppe Giovanni Terzi UNICAMP; Faculdade de Ciências Médicas; Departamento de Cirurgia

DOI:

https://doi.org/10.1590/S0104-11691999000200011

Keywords:

oxymetry, pulse, critical patients, monitoring

Abstract

In this clinical investigation 35 patients under mechanical ventilation were studied. It was possible to establish the precision of two pulse oximeters of different brands. The performance of these equipments was evaluated by comparing data with the hemo-oximeter and a statistical analysis employed the student t test. Results showed that bias between oximeters reading and hemo-oximeter was similar for both instruments. Eventually critical patients may present conditions that limit the use of this technique. The study showed that the discrepancy in the results observed may be attributed to the presence of the methemoglobin and possible to anaemia associated to hipoxia.

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Published

1999-04-01

Issue

Section

Original Articles

How to Cite

Pulse oximeters in the evaluation of oxygen transportation in critical patients. (1999). Revista Latino-Americana De Enfermagem, 7(2), 79-85. https://doi.org/10.1590/S0104-11691999000200011