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EE: Gas Collection Devices (2013)

Assessment
Is there a difference in RMR measurements related to different types of gas collection devices (such as face mask, mouthpieces with noseclips, or ventilated hood/canopy) in healthy and non-critically ill individuals?
- Conclusion
  Based on the research reviewed, there is conflicting evidence regarding RMR measurements made comparing a ventilated hood with either mouthpiece/noseclip or face mask in healthy adults; this may be due to differences in patient comfort. One study in healthy children reported no significant differences between RMR measurements comparing mouthpiece/noseclip vs. face mask. Additional research comparing gas collection devices is needed.
- Grade: III
  - Grade I means there is Good/Strong evidence supporting the statement;
  - Grade II is Fair;
  - Grade III is Limited/Weak;
  - Grade IV is Expert Opinion Only;
  - Grade V is Not Assignable.
  - High (A) means we are very confident that the true effect lies close to that of the estimate of the effect;
  - Moderate (B) means we are moderately confident in the effect estimate;
  - Low (C) means our confidence in the effect estimate is limited;
  - Very Low (D) means we have very little confidence in the effect estimate.
  - Ungraded means a grade is not assignable.
- Evidence Summary: Is there a difference in RMR measurements related to different types of gas collection devices (such as facemask, mouthpieces with noseclips, or ventilated hood/canopy) in healthy and non-critically ill individuals?
- Search Plan and Results: EE: Gas Collection Devices in Healthy and Non-Critically Ill Individuals 2012