Using the figure, what amount of oxygen is necessary to be bled into a Pulmonetic Systems LTV 1000, with a minute volume of 10 L/min, to achieve a fractional inspired oxygen level of 70%?
a. 5 L/min c. 10 L/min
b. 8 L/min d. 15 L/min
ANS: C
Locate the minute volume of 10 L/min on the right side of the chart. Follow the 10 L/min line down until it intersects with the 0.70 vertical line. Follow the vertical line left to read the input oxygen flow (L/min).
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