During an incentive spirometry treatment, a patient holds the 600 mL/s ball up for 1.5 seconds; the patient inhaled a volume of _____ L
a. 0.15 c. 0.60
b. 0.45 d. 0.90
ANS: D
Flow = Tidal volume ÷ Inspiratory time.
Tidal volume = Flow ? Inspiratory time.
Tidal volume = 600 mL/s ? 1.5 s = 900 mL, or 0.90 L.
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