Adjusting the respiratory rate on a mechanical ventilator can be used to adjust a patient's PaCO2.



(1) current respiratory rate in breaths per minute

(2) current PaCO2 in mm Hg

(3) desired PaCO2 in mm Hg


target respiratory rate in breaths per minute =

= (current PaCO2) / (desired PaCO2) * (current respiratory rate)



• It is assumed that there is no change in tidal volume.

• The minute volume is the tidal volume in L times the respiratory rate.

• The target respiratory rate may need to be ROUNDed to an integer.


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