A patient reports that during incentive spirometry she becomes ...

[amal]

A patient reports that during incentive spirometry she becomes dizzy and must stop the maneuver when this happens. The most probable cause of this situation is:
 
  a. hypoventilation. c. patient fatigue.
  b. hyperventilation. d. bronchospasm.

Question 2

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

[sabina576]

Answer to Question 1

ANS: B
The patient's light-headedness is caused by hyperventilation. This is a common complication of incentive spirometry.

Answer to Question 2

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.