The respiratory therapist has been called to place a 70-kg male patient with ARDS on ventilatory support. The physician has requested a respiratory rate of 20/min. Which of the following would be an appropriate VT for this patient?
a. 140 ml
b. 200 ml
c. 350 ml
d. 700 ml
ANS: C
The currently acceptable tidal volume for a mechanically ventilated patient with ARDS in acute respiratory failure is 4 to 8 ml/kg. Therefore, the VT must be set between 280 (70 kg ? 4 ml/kg) and 560 ml (70 kg ? 8 ml/kg).
You might also like to view...
A panicked and anxious patient tells you that he is allergic to peanuts and thinks he may have accidentally eaten some. He states that the last time he ate peanuts he almost died and needed to have a "tube put in his throat." When assessing the patient, which of the following signs or symptoms would provide the best evidence that the patient is having an allergic, and possibly an anaphylactic,
reaction? A) Hives on his chest B) Panic and anxiety C) Elevated blood pressure D) Cool and clammy skin
Which of the following statements regarding powered industrial trucks is MOST accurate?
A. Trucks must be kept reasonably free of lint. B. Liquefied petroleum gas (LPG) is not a recommended fuel. C. Gas-fueled vehicles may be fueled inside well-ventilated buildings. D. Repairs should be performed immediately, regardless of location of the truck.
What is the primary reason for the difference in strength between males and females?
A. Females have smaller muscle fibers than males do. B. Females have a higher percentage of body fat, which decreases the strength/body weight ratio. C. Females are incapable of building significant muscular strength. D. Females have increased testosterone levels, which decreases their ability to develop muscle bulk.
Administrative examination __________
Fill in the blank(s) with the appropriate word(s).