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You are reviewing the chest X-ray of a 32 year-old female receiving ventilatory support via an oral endotracheal (ET) tube. To assure proper placement of the tube, you would look for its tip to be positioned

A. at the same level as the carina B. not more than 2 cm above the carina C. between the 2nd and 4th thoracic vertebra D. level with the fifth cervical vertebra

During volume control, which of the following variables are set by the clinician?

I. Volume II.Pressure III.Flow IV.Inspiratory time A) I and III B) I and IV C) II and III D) II and IV