Setting flow rates high will cause which of the following to occur?
a. Improve gas exchange
b. Lengthen inspiratory time
c. Increase air trapping
d. Increase peak pressures
ANS: D
The flow setting on a mechanical ventilator determines how fast the inspired gas will be deliv-ered to the patient. During continuous mandatory ventilation (CMV), high flows shorten inspira-tory time (TI) and may result in higher peak pressures and poor gas distribution.
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Which of the following regarding special populations and medication administration is FALSE?
A) Geriatric patients often have other multiple medical conditions such as liver and kidney dysfunction that does not allow medications to be removed as quickly. B) Infants do not have mature organ systems and often their liver is not mature enough to process and metabolize drugs efficiently. C) Larger patients will require less of a given medication to achieve the therapeutic dose. D) Since men tend to have a greater weight and muscle mass, they tend to require a higher dose than women.
Which of the following are considered safe settings for a recruitment maneuver? 1. Pressures up to 50 cm H2O 2. Pressures up to 35 cm H2O 3. Pressures applied for 5 to 10 min 4. Pressures applied for 1 to 3 min
a. 1 and 3 only b. 1 and 4 only c. 2 and 3 only d. 2 and 4 only