The principle that the respiratory system moves with 2 degrees of ...

[vicotolentino]

The principle that the respiratory system moves with 2 degrees of freedom describes the basis for which of the following?
 
  a. Inductive plethys-mography c. Strain gauge trans-ducer
  b. Volume plethys-mography d. Nitrogen washout

Question 2

What type of device is used in an ICU to detect respiratory muscle fatigue?
 
  a. Aneroid manometer c. Inductive plethys-mograph
  b. Pressure plethys-mograph d. Electromechanical transducer

[tanna.moeller]

Answer to Question 1

ANS: A
Inductive plethysmography is based on the principle that the respiratory system moves with 2 degrees of freedom. That is, it consists of two moving parts: the rib cage and the abdomen. Dur-ing inspiration, the rib cage moves outward as the lungs expand in the thorax. Simultaneously, the abdomen is displaced outward by the downward movement of the diaphragm.

Answer to Question 2

ANS: C
Respiratory inductive plethysmography has been used clinically as a means of monitoring the breathing patterns of patients in ICUs. In the ICU, it has been used primarily to identify uncoor-dinated thoracoabdominal movements that are associated with respiratory muscle fatigue or fail-ure.