Continuous Measurement of Oxygen Consumption from the Airway in intubated Patients attached to a Ventilator Circuit - An Observational Study

Continuous Measurement of Oxygen Consumption from the Airway in Intubated Patients attached to a Ventilator Circuit - An Observational Study

Status

Not yet recruiting

Phases

Unknown

Study type

Observational

Source

ANZCTR

Registry ID

ACTRN12612000066886

Enrollment

Registered

2012-01-12

Start date

2012-02-01

Completion date

Unknown

Last updated

2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The project seeks to measure oxygen consumption by precision addition of oxygen to the mixed expired gas until the mixed expired pO2 equals the inspired pO2

Interventions

Inspired and expired oxygen fraction are sampled sequentially using a common electrode. Mixed expired pCO2 is measured. Oxygen is precision added to the mixed expired gas until, allowing for water vapour and CO2, the mixed expired pO2 equals the inspired pO2. The rate of oxygen addition then equals the oxygen consumption. The duration of observation will be about 6 hours.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

Intubated Patients attached to a ventilator circuit. Pregnant women included

Exclusion criteria

Patients not requiring to be intubated.

Outcome results