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Author Question: Which of the following variables can be measured directly? a. Lung compliance c. Raw b. Work of ... (Read 186 times)

Yolanda

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Which of the following variables can be measured directly?
 
  a. Lung compliance c. Raw
  b. Work of breathing d. Pplateau

Question 2

Which of the following values is not measured directly?
 
  a. FEV1 c. Peak expiratory flows
  b. Airway resistance (Raw) d. Maximum inspira-tory pressure



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mohan

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Answer to Question 1

ANS: D
Pplateau is measured during mechanical ventilation and represents the amount of pressure needed to maintain the tidal volume within the patient's lungs during a period of no gas flow.

Answer to Question 2

ANS: B
FEV1 and peak expiratory flows are routine measurements during spirometry. Maximum inspira-tory pressure is a common airway pressure measurement made on spontaneously breathing pa-tients. Raw is calculated by subtracting plateau pressure (Pplateau) from peak inspiratory pressure and dividing the resultant pressure by the airflow.





 

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