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flow-volume loop

   Also found in: Acronyms 0.01 sec.
flow-volume loop,
a graph of the rate of airflow as a function of lung volume during a complete respiratory cycle consisting of a forced inspiration followed by a forced expiration. The plotted curve appears as a loop and is used in assessing pulmonary function.


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The helium iso-flow study involves having the patient perform a flow-volume loop while breathing room air.
The monitor also displays pressure-volume and flow-volume loops that can be compared in real time with reference loops.
It becomes very evident that a patient is trying to change his spirometric results by observing the variation in flow-volume loop shape.
 
 
 
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