Effect of nasal cannula oxygen administration on oxygen concentration at facial and adjacent landmarks.
Anaesthesia
; 64(5): 521-6, 2009 May.
Article
en En
| MEDLINE
| ID: mdl-19413822
An oxygen-enriched atmosphere enhances the potential for operating-room fires. We thus determined oxygen concentrations at various facial landmarks during oxygen administration via nasal cannulae. Thirteen supine volunteers were draped similarly to patients undergoing a cervical-node biopsy. Oxygen was delivered in random order through nasal cannulae at rates of 2, 4, and 6 l x min(-1). Oxygen concentration was measured at pre-determined facial landmarks and also distal to the drape at non-facial sites. At a flow of 2 l x min(-1), oxygen concentrations exceeded 23% only within a few centimetres of the nasal cannula. Concentration increased as a function of flow, but rarely exceeded 26%. At all flow rates, concentrations distal to the drape were < 24%. To reduce combustion risk, ignition sources should be kept at least 10 cm from the oxygen outlet when using nasal cannula at a flow rate > or = 4 l x min(-1).
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Quirófanos
/
Oxígeno
/
Terapia por Inhalación de Oxígeno
/
Contaminación del Aire Interior
Tipo de estudio:
Clinical_trials
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Anaesthesia
Año:
2009
Tipo del documento:
Article
País de afiliación:
Turquía
Pais de publicación:
Reino Unido