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A male patient (83-kg IBW) is intubated and ventilated with PC-CMV, f = 12/min, set PIP = 28 cm H2O, resulting in a VT of 430 mL. The ABG results on this setting are: pH 7.35, PaCO2 45 mm Hg, and HCO3- 23 mEq/L. Forty-eight hours later on the same settings, the ABG results are: pH 7.54, PaCO2 27 mm Hg, and HCO3- 21 mEq/L with an exhaled VT of 800 mL. The most appropriate action at this time is which of the following?

A patient arrives in the emergency department via ambulance following rescue from a house fire. The instrument that would be most appropriate to assist the respiratory therapist in assessing this patient’s oxygenation status is which of the following?

The pressure at which large numbers of alveoli are recruited in a patient with acute respiratory distress syndrome (ARDS) is located on the static pressure-volume curve at which of the following points?

Copying of the information in DNA into RNA, which can exit the nucleus is called  


Which of the following is not correct concerning the skin? 

Which elements make up 95% (by weight) of the human body? 


Epidermal cells are supplied with nutrients from blood vessels located in the  


In superior-subordinate relationships in the workplace, it is best if the parties do all of the following EXCEPT

The ability of an organism to sense changes in its body is an example of  


The level of PEEP that is most appropriate for a patient with the information shown below is which of the following? Time 0725 0730 0742 0748 0755 0800 PEEP (cm H2O) 5 8 10 12 15 18 Cs (mL/cm H2O) 27 28 34 36 38 25 P(a-et)CO2 (mm Hg) 12 10 8 6 5 10 PaO2/FIO2 159 190 237 237 240 204