9. 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. Decrease PIP to 25 cm H2O. b. Decrease PIP to 19 cm H2O. c. Decrease f to 10/min. d. Decrease f to 8/min.
9. 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. Decrease PIP to 25 cm H2O. b. Decrease PIP to 19 cm H2O. c. Decrease f to 10/min. d. Decrease f to 8/min.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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9. 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. Decrease PIP to 25 cm H2O.
b. Decrease PIP to 19 cm H2O.
c. Decrease f to 10/min.
d. Decrease f to 8/min.
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