Which of the following is true concerning flow-dependent ...

[anjilletteb]

Which of the following is true concerning flow-dependent incentive spirometry devices?
 
  a. The volume capacity for a child should be approximately 3 L.
  b. The patient must perform a sustained maximum inspiration.
  c. They are available as multiuse electrically powered devices.
  d. Positive pressure within the device causes the flexible plastic bellows to rise.

Question 2

A patient has undergone surgery and is receiving continuous supplemental oxygen via a 30 air-entrainment mask.
 
  He or she becomes pale and short of breath during incentive spirometry. Pulse oximetry reveals a significant drop in oxygen saturation during incentive spirometry. The respiratory therapist should do which of the following for subsequent incentive spirometry therapy?
  a. Switch to a different type of incentive spirometer.
  b. Request that incentive spirometry be dis-continued.
  c. Cut a hole in the mask for the incentive spirometer's mouthpiece.
  d. Use a 3 L/min nasal cannula during incen-tive spirometry.

[wshriver]

Answer to Question 1

ANS: B
The performance of a sustained maximum inspiration is necessary to perform incentive spirometry with a flow-dependent incentive spirometer (or any incentive spirometry device).

Answer to Question 2

ANS: D
The drop in oxygen saturation during incentive spirometry is due to the interruption of oxygen therapy. For this patient it is necessary to maintain oxygen therapy during incentive spirometry. Because the use of a mask is difficult during incentive spirometry, a nasal cannula with a flow rate of 3 L/min will approximate the air-entrainment mask's 30 supplemental oxygen.

[anjilletteb]

Thank you

[wshriver]

No problemo