Pulmonology · Critical Care

Respiratory Quotient (RQ) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Rq Vco2 Ml Min (mL/min)

Rq Vo2 Ml Min (mL/min)

Result

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Formula inputs

Rq Vco2 Ml Min (mL/min)Accepted range: 50 to 3000
Rq Vo2 Ml Min (mL/min)Accepted range: 50 to 3000

Primary source

Raurich JM et al. Respiratory quotient monitoring in critically ill patients. Intensive Care Med. DOI: 10.1007/s001340050958. PMID: 10470572. Scope: Respiratory quotient = VCO₂ (mL/min) / VO₂ (mL/min) from indirect calorimetry. (1999)

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