A male patient (76-kg IBW)with no history of pulmonary disease is brought to the emergency department for treatment of a drug overdose.He is intubated and placed on mechanical ventilation with VC-CMV,f = 12/min,Vᴛ = 450 mL.The resulting arterial blood gas values are: pH 7.32,PₐCO₂ 53 mm Hg,and HCO₃⁻ 25 mEq/L.The most appropriate action to correct the acid-base disturbance is which of the following?

Question

Quizplus · Accepted Answer

Desired Vᴛ = Known PaCO₂ × Known Vᴛ / Desired PaCO₂
The desired target for Vᴛ for this patient is 5-8 mL/kg IBW.Because the set Vᴛ of 450 mL is at 5.9 mL/kg,there is room to increase the Vᴛ.After calculating the desired Vᴛ using the formula,the new volume is at 7.8 mL/kg.A Vᴛ of 760 mL would be at 10 mL/kg IBW.

A Male Patient (76-Kg IBW)with No History of Pulmonary Disease