Evaluation of the Servomex Paramagnetic Analyzer

Nunn, J.F.; Bergman, Norman A.; Coleman, A.J.; Casselle, D.C.

doi:10.1093/bja/36.10.666

Cited by 30 publications

(9 citation statements)

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“…35 The respiratory pattern of a patient was simulated using a Beaver Ventilator Mark 2 (British Oxygen Company Ltd) with respiratory rates from 1 1 to 24 cycles per minute and tidal volumes from 250 ml to 1000 ml, so varying the minute volumes between 2.5 and 12 litres per minute. The resultant oxygen concentrations were measured supplementing with both I and 4 litres per minute of added oxygen into the 0.75-m Laerdal extension tube.…”

Section: Oxygen Supplementationmentioning

confidence: 99%

The Triservice anaesthetic apparatus

Houghton

1981

Anaesthesia

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Section: Oxygen Supplementationmentioning

confidence: 99%

The Triservice anaesthetic apparatus

Houghton

1981

Anaesthesia

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“…A correction factor was made for the in-vivo effect of Pco2 (Severinghaus and Bradley, 1969). Inspired oxygen concentration was measured using a Servomex oxygen analyser calibrated with air and nitrogen (Nunn et al, 1964).…”

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confidence: 99%

Virological Findings and Blood Gas Tensions in Acute Lower Respiratory Tract Infections in Children

Simpson¹,

Matthew²,

Inglis³

et al. 1974

BMJ

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Summary Sequential blood gas tensions and pH have been measured in 84 children selected from 486 admitted to hospital during a 15-month period with acute lower respiratory tract infections. Of those selected 73 were treated conservatively and 11 by intermittent positive-pressure ventilation; one infant in the latter group died. Respiratory syncytial virus (R.S.V.) was isolated from 24 out of 62 patients studied and the main pathogen in the most severely affected infants. Statistical analysis showed that age and R.S.V. infection were independent determinants of severity, as reflected by a peak Pco2 measurement at the height of the iliness (age, P < 001; R.S.V. 0-05 > P > 001). IntroductionIn Britain acute lower respiratory tract infections (bronchitis, bronchiolitis, and bronchopneumonia) are the main respiratory illnesses causing adrmission to hospital of children under the age of 2 years. When these conditions are considered together as "bronchiolitis" the mortality rate is about 5 % (Heycock and

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“…The accuracy of this type of analyser has been compared by Nunn et al (1964) with that of the Lloyd-Haldane chemical gas analyser (Lloyd, 1958) and found to agree well.…”

Section: Gas Analysismentioning

confidence: 90%

Safety Precautions to be Observed with Cooled Premixed Gases

Bracken¹,

Broughton²,

Hill³

1968

BMJ

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Summary: The gas delivered from a cylinder of Entonox (50% nitrous oxide and 50% oxygen) may not contain adequate quantities of oxygen if the cylinder has been cooled and then allowed to warm up in a vertical position.The composition of gas delivered from cylinders cooled to not lower than -40°C. remains unaltered if the cylinders are rewarmed for 24 hours in a horizontal position at a temperature of not less than 5°C.Cylinders of Entonox delivered in cold weather should be stored in a horizontal position at 5°C. or more for at least 24 hours before use.

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Evaluation of the Servomex Paramagnetic Analyzer

Cited by 30 publications

References 0 publications

The Triservice anaesthetic apparatus

The Triservice anaesthetic apparatus

Virological Findings and Blood Gas Tensions in Acute Lower Respiratory Tract Infections in Children

Safety Precautions to be Observed with Cooled Premixed Gases

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