A female patient (59-kg IBW)with no history of pulmonary disease is being invasively ventilated with VC-CMV,f = 12/min,Vᴛ = 470 mL,PEEP = 5 cm H₂O,FɪO₂ = 0.5.ABG results with these settings are: pH 7.31,PₐCO₂ 54 mm Hg,PₐO₂ 92 mm Hg,SₐO₂ 90%,HCO₃⁻ 24 mEq/L.The most appropriate action for the respiratory therapist to take is which of the following?

Question

Quizplus · Accepted Answer

The target Vᴛ for an individual without pulmonary disease is 5-8 mL/kg IBW.This patient's Vᴛ range is 295-472 mL,meaning that the upper limit of this range has been reached.The f should be changed to increase this patient's minute ventilation.
Desired f = Known Pa CO₂ × Known f /Desired Pa CO₂ ; desired f = 16

A Female Patient (59-Kg IBW)with No History of Pulmonary Disease